Personal protective equipment

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Drug Enforcement Administration (DEA) agents wearing Level B hazmat suits
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Safety equipment and supervisor instructions at a construction site
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Personal protective equipment (PPE) is protective clothing, helmets, goggles, or other garments or equipment designed to protect the wearer's body from injury or infection. The hazards addressed by protective equipment include physical, electrical, heat, chemical, biohazards, and airborne particulate matter. Protective equipment may be worn for job-related occupational safety and health purposes, as well as for sports and other recreational activities. Protective clothing is applied to traditional categories of clothing, and protective gear applies to items such as pads, guards, shields, or masks, and others. PPE suits can be similar in appearance to a cleanroom suit.

Contents

The purpose of personal protective equipment is to reduce employee exposure to hazards when engineering controls and administrative controls are not feasible or effective to reduce these risks to acceptable levels. PPE is needed when there are hazards present. PPE has the serious limitation that it does not eliminate the hazard at the source and may result in employees being exposed to the hazard if the equipment fails. [1]

Any item of PPE imposes a barrier between the wearer/user and the working environment. This can create additional strains on the wearer, impair their ability to carry out their work and create significant levels of discomfort. Any of these can discourage wearers from using PPE correctly, therefore placing them at risk of injury, ill-health or, under extreme circumstances, death. Good ergonomic design can help to minimise these barriers and can therefore help to ensure safe and healthy working conditions through the correct use of PPE.

Practices of occupational safety and health can use hazard controls and interventions to mitigate workplace hazards, which pose a threat to the safety and quality of life of workers. The hierarchy of hazard controls provides a policy framework which ranks the types of hazard controls in terms of absolute risk reduction. At the top of the hierarchy are elimination and substitution, which remove the hazard entirely or replace the hazard with a safer alternative. If elimination or substitution measures cannot be applied, engineering controls and administrative controls –which seek to design safer mechanisms and coach safer human behavior –are implemented. Personal protective equipment ranks last on the hierarchy of controls, as the workers are regularly exposed to the hazard, with a barrier of protection. The hierarchy of controls is important in acknowledging that, while personal protective equipment has tremendous utility, it is not the desired mechanism of control in terms of worker safety.

History

A 1568 painting depicting beekeepers in protective clothing, by Pieter Brueghel the Elder. Die Bienenzuchter (Bruegel).jpg
A 1568 painting depicting beekeepers in protective clothing, by Pieter Brueghel the Elder.

Early PPE such as body armor, boots and gloves focused on protecting the wearer's body from physical injury. The plague doctors of sixteenth-century Europe also wore protective uniforms consisting of a full-length gown, helmet, glass eye coverings, gloves and boots (see Plague doctor costume) to prevent contagion when dealing with plague victims. These were made of thick material which was then covered in wax to make it water-resistant. A mask with a beak-like structure was filled with pleasant-smelling flowers, herbs and spices to prevent the spread of miasma, the prescientific belief of bad smells which spread disease through the air. [2] In more recent years, scientific personal protective equipment is generally believed to have begun with the cloth facemasks promoted by Wu Lien-teh in the 1910–11 Manchurian pneumonic plague outbreak, although some doctors and scientists of the time doubted the efficacy of facemasks in preventing the spread of that disease since they didn't believe it was transmitted through the air. [3]

Types

Personal protective equipment can be categorized by the area of the body protected, by the type of hazard, and by the type of garment or accessory. A single item –for example, boots –may provide multiple forms of protection: a steel toe cap and steel insoles for protection of the feet from crushing or puncture injuries, impervious rubber and lining for protection from water and chemicals, high reflectivity and heat resistance for protection from radiant heat, and high electrical resistivity for protection from electric shock. The protective attributes of each piece of equipment must be compared with the hazards expected to be found in the workplace. More breathable types of personal protective equipment may not lead to more contamination but do result in greater user satisfaction. [4]

Respirators

Air-purifying respirator Air-Purifying Respirator.jpg
Air-purifying respirator
N95 mask N95mask.jpg
N95 mask

Respirators are protective breathing equipment, which protect the user from inhaling contaminants in the air, thus preserving the health of their respiratory tract. There are two main types of respirators. One type of respirator functions by filtering out chemicals and gases, or airborne particles, from the air breathed by the user. [5] The filtration may be either passive or active (powered). Gas masks and particulate respirators (like N95 masks) [6] are examples of this type of respirator. A second type of respirator protects users by providing clean, respirable air from another source. This type includes airline respirators and self-contained breathing apparatus (SCBA). [5] In work environments, respirators are relied upon when adequate ventilation is not available or other engineering control systems are not feasible or inadequate. [5]

In the United Kingdom, an organization that has extensive expertise in respiratory protective equipment is the Institute of Occupational Medicine. This expertise has been built on a long-standing and varied research programme that has included the setting of workplace protection factors to the assessment of efficacy of masks available through high street retail outlets.[ citation needed ]

The Health and Safety Executive (HSE), NHS Health Scotland and Healthy Working Lives (HWL) have jointly developed the RPE (Respiratory Protective Equipment) Selector Tool, which is web-based. This interactive tool provides descriptions of different types of respirators and breathing apparatuses, as well as "dos and don'ts" for each type. [7]

In the United States, The National Institute for Occupational Safety and Health (NIOSH) provides recommendations on respirator use, in accordance to NIOSH federal respiratory regulations 42 CFR Part 84. [5] The National Personal Protective Technology Laboratory (NPPTL) of NIOSH is tasked towards actively conducting studies on respirators and providing recommendations. [8]

Surgical masks

Surgical masks are sometimes considered as PPE, but are not considered as respirators, being unable to stop submicron particles from passing through, and also having unrestricted air flow at the edges of the masks. [6] [9]

Surgical masks are not certified for the prevention of tuberculosis. [10]

Skin protection

A worker wearing a respirator, lab coat, and gloves while weighing carbon nanotubes Worker weighing carbon nanotubes.png
A worker wearing a respirator, lab coat, and gloves while weighing carbon nanotubes
This is an incorrect use of personal protective equipment, because the gap between the glove and the lab coat exposes the wrist to hazardous materials. Incorrect use of personal protective equipment.png
This is an incorrect use of personal protective equipment, because the gap between the glove and the lab coat exposes the wrist to hazardous materials.

Occupational skin diseases such as contact dermatitis, skin cancers, and other skin injuries and infections are the second-most common type of occupational disease and can be very costly. [11] Skin hazards, which lead to occupational skin disease, can be classified into four groups. Chemical agents can come into contact with the skin through direct contact with contaminated surfaces, deposition of aerosols, immersion or splashes. [11] Physical agents such as extreme temperatures and ultraviolet or solar radiation can be damaging to the skin over prolonged exposure. [11] Mechanical trauma occurs in the form of friction, pressure, abrasions, lacerations and contusions. [11] Biological agents such as parasites, microorganisms, plants and animals can have varied effects when exposed to the skin. [11]

Any form of PPE that acts as a barrier between the skin and the agent of exposure can be considered skin protection. Because much work is done with the hands, gloves are an essential item in providing skin protection. Some examples of gloves commonly used as PPE include rubber gloves, cut-resistant gloves, chainsaw gloves and heat-resistant gloves. For sports and other recreational activities, many different gloves are used for protection, generally against mechanical trauma.

Other than gloves, any other article of clothing or protection worn for a purpose serve to protect the skin. Lab coats for example, are worn to protect against potential splashes of chemicals. Face shields serve to protect one's face from potential impact hazards, chemical splashes or possible infectious fluid.

Many migrant workers need training in PPE for Heat Related Illnesses prevention (HRI). Based on study results, research identified some potential gaps in heat safety education. While some farm workers reported receiving limited training on pesticide safety, others did not. This could be remedied by incoming groups of farm workers receiving video and in-person training on HRI prevention. These educational programs for farm workers are most effective when they are based on health behavior theories, use adult learning principles and employ train-the-trainer approaches. [12]

Eye protection

A paintball player wearing appropriate eye protection against impact Nuxos1pl.JPG
A paintball player wearing appropriate eye protection against impact

Each day, about 2,000 US workers have a job-related eye injury that requires medical attention. [13] Eye injuries can happen through a variety of means. Most eye injuries occur when solid particles such as metal slivers, wood chips, sand or cement chips get into the eye. [13] Smaller particles in smokes and larger particles such as broken glass also account for particulate matter-causing eye injuries. Blunt force trauma can occur to the eye when excessive force comes into contact with the eye. Chemical burns, biological agents, and thermal agents, from sources such as welding torches and UV light, also contribute to occupational eye injury. [14]

While the required eye protection varies by occupation, the safety provided can be generalized. Safety glasses provide protection from external debris, and should provide side protection via a wrap-around design or side shields. [14]

Hearing protection

A PPE station, containing eye protection and earplugs, as well as a place to dispose of dirty glasses. SafetyGlassesAndEarplugs.jpg
A PPE station, containing eye protection and earplugs, as well as a place to dispose of dirty glasses.

Industrial noise is often overlooked as an occupational hazard, as it is not visible to the eye. Overall, about 22 million workers in the United States are exposed to potentially damaging noise levels each year. [15] Occupational hearing loss accounted for 14% of all occupational illnesses in 2007, with about 23,000 cases significant enough to cause permanent hearing impairment. [15] About 82% of occupational hearing loss cases occurred to workers in the manufacturing sector. [15] In the US the Occupational Safety and Health Administration establishes occupational noise exposure standards. [16] The National Institute for Occupational Safety and Health recommends that worker exposures to noise be reduced to a level equivalent to 85 dBA for eight hours to reduce occupational noise-induced hearing loss. [17]

PPE for hearing protection consists of earplugs and earmuffs. Workers who are regularly exposed to noise levels above the NIOSH recommendation should be provided with hearing protection by the employers, as they are a low-cost intervention. A personal attenuation rating can be objectively measured through a hearing protection fit-testing system. The effectiveness of hearing protection varies with the training offered on their use. [18]

Protective clothing and ensembles

Locker containing personal protective equipment Regal mit Personlicher Schutzausrustung.jpg
Locker containing personal protective equipment
A complete PPE ensemble worn during high pressure cleaning work High-Pressure-Cleaning-with-Personal-Protective-Equipment.jpg
A complete PPE ensemble worn during high pressure cleaning work

This form of PPE is all-encompassing and refers to the various suits and uniforms worn to protect the user from harm. Lab coats worn by scientists and ballistic vests worn by law enforcement officials, which are worn on a regular basis, would fall into this category. Entire sets of PPE, worn together in a combined suit, are also in this category.

Ensembles

Medical PPE gowns worn by medical personnel during the COVID-19 pandemic PPE kit.jpg
Medical PPE gowns worn by medical personnel during the COVID-19 pandemic

Below are some examples of ensembles of personal protective equipment, worn together for a specific occupation or task, to provide maximum protection for the user:

In sports

Participants in sports often wear protective equipment. Studies performed on the injuries of professional athletes, such as that on NFL players, [20] [21] question the effectiveness of existing personal protective equipment.

Limits of the definition

The definition of what constitutes personal protective equipment varies by country. In the United States, the laws regarding PPE also vary by state. In 2011, workplace safety complaints were brought against Hustler and other adult film production companies by the AIDS Healthcare Foundation, leading to several citations brought by Cal/OSHA. [22] The failure to use condoms by adult film stars was a violation of Cal/OSHA's Blood borne Pathogens Program, Personal Protective Equipment. [22] This example shows that personal protective equipment can cover a variety of occupations in the United States, and has a wide-ranging definition.

Legislation

Workers using personal protective equipment while painting poles. While basic head protection is present, no engineering fall protection systems appear to be in place. Safetyequipment3030.jpg
Workers using personal protective equipment while painting poles. While basic head protection is present, no engineering fall protection systems appear to be in place.

United States

The National Defense Authorization Act for 2022 defines personal protective equipment as

Equipment for use in preventing spread of disease, such as by exposure to infected individuals or contamination or infection by infectious material (including nitrile and vinyl gloves, surgical masks, respirator masks and powered air purifying respirators and required filters, face shields and protective eyewear, surgical and isolation gowns, and head and foot coverings) or clothing, and the materials and components thereof, other than sensors, electronics, or other items added to and not normally associated with such personal protective equipment or clothing. [23]

Under this Act, US military services are prohibited from purchasing PPE from suppliers in North Korea, China, Russia or Iran, unless there are problems with the supply or cost of PPE of "satisfactory quality and quantity". [23]

European Union

At the European Union level, personal protective equipment is governed by Directive 89/686/EEC on personal protective equipment (PPE). The Directive is designed to ensure that PPE meets common quality and safety standards by setting out basic safety requirements for personal protective equipment, as well as conditions for its placement on the market and free movement within the EU single market. It covers "any device or appliance designed to be worn or held by an individual for protection against one or more health and safety hazards". [24] The directive was adopted on 21 January 1989 and came into force on 1 July 1992. The European Commission additionally allowed for a transition period until 30 June 1995 to give companies sufficient time to adapt to the legislation. After this date, all PPE placed on the market in EU Member States was required to comply with the requirements of Directive 89/686/EEC and carry the CE Marking.

Article 1 of Directive 89/686/EEC defines personal protective equipment as any device or appliance designed to be worn or held by an individual for protection against one or more health and safety hazards. PPE which falls under the scope of the Directive is divided into three categories:

Directive 89/686/EEC on personal protective equipment does not distinguish between PPE for professional use and PPE for leisure purposes.

Personal protective equipment falling within the scope of the Directive must comply with the basic health and safety requirements set out in Annex II of the Directive. To facilitate conformity with these requirements, harmonized standards are developed at the European or international level by the European Committee for Standardization (CEN, CENELEC) and the International Organization for Standardization in relation to the design and manufacture of the product. Usage of the harmonized standards is voluntary and provides presumption of conformity. However, manufacturers may choose an alternative method of complying with the requirements of the Directive.

Personal protective equipment excluded from the scope of the Directive includes:

The European Commission is currently working to revise Directive 89/686/EEC. The revision will look at the scope of the Directive, the conformity assessment procedures and technical requirements regarding market surveillance. It will also align the Directive with the New Legislative Framework. The European Commission is likely to publish its proposal in 2013. It will then be discussed by the European Parliament and Council of the European Union under the ordinary legislative procedure before being published in the Official Journal of the European Union and becoming law.

Research

Research studies in the form of randomized controlled trials and simulation studies are needed to determine the most effective types of PPE for preventing the transmission of infectious diseases to healthcare workers. [4]

There is low certainty evidence that supports making improvements or modifications to PPE in order to help decrease contamination. [4] Examples of modifications include adding tabs to masks or gloves to ease removal and designing protective gowns so that gloves are removed at the same time. [4] In addition, there is low certainty evidence that the following PPE approaches or techniques may lead to reduced contamination and improved compliance with PPE protocols: Wearing double gloves, following specific doffing (removal) procedures such as those from the CDC, and providing people with spoken instructions while removing PPE. [4]

See also

Related Research Articles

<span class="mw-page-title-main">Parathion</span> Chemical compound

Parathion, also called parathion-ethyl or diethyl parathion and locally known as "Folidol", is an organophosphate insecticide and acaricide. It was originally developed by IG Farben in the 1940s. It is highly toxic to non-target organisms, including humans, so its use has been banned or restricted in most countries. The basic structure is shared by parathion methyl.

<span class="mw-page-title-main">Chemical hazard</span> Non-biological hazards of hazardous materials

Chemical hazards are hazards present in hazardous chemicals and hazardous materials. Exposure to certain chemicals can cause acute or long-term adverse health effects. Chemical hazards are usually classified separately from biological hazards (biohazards). Chemical hazards are classified into groups that include asphyxiants, corrosives, irritants, sensitizers, carcinogens, mutagens, teratogens, reactants, and flammables. In the workplace, exposure to chemical hazards is a type of occupational hazard. The use of personal protective equipment may substantially reduce the risk of adverse health effects from contact with hazardous materials.

<span class="mw-page-title-main">Respirator</span> Device worn to protect the user from inhaling contaminants

A respirator is a device designed to protect the wearer from inhaling hazardous atmospheres including lead fumes, vapors, gases and particulate matter such as dusts and airborne pathogens such as viruses. There are two main categories of respirators: the air-purifying respirator, in which respirable air is obtained by filtering a contaminated atmosphere, and the air-supplied respirator, in which an alternate supply of breathable air is delivered. Within each category, different techniques are employed to reduce or eliminate noxious airborne contaminants.

Workplace health surveillance or occupational health surveillance (U.S.) is the ongoing systematic collection, analysis, and dissemination of exposure and health data on groups of workers. The Joint ILO/WHO Committee on Occupational Health at its 12th Session in 1995 defined an occupational health surveillance system as "a system which includes a functional capacity for data collection, analysis and dissemination linked to occupational health programmes".

<span class="mw-page-title-main">Physical hazard</span> Hazard due to a physical agent

A physical hazard is an agent, factor or circumstance that can cause harm with contact. They can be classified as type of occupational hazard or environmental hazard. Physical hazards include ergonomic hazards, radiation, heat and cold stress, vibration hazards, and noise hazards. Engineering controls are often used to mitigate physical hazards.

<span class="mw-page-title-main">Usage of personal protective equipment</span>

The use of personal protective equipment (PPE) is inherent in the theory of universal precaution, which requires specialized clothing or equipment for the protection of individuals from hazard. The term is defined by the Occupational Safety and Health Administration (OSHA), which is responsible for PPE regulation, as the "equipment that protects employees from serious injury or illness resulting from contact with chemical, radiological, physical, electrical, mechanical, or other hazards." While there are common forms of PPEs such as gloves, eye shields, and respirators, the standard set in the OSHA definition indicates a wide coverage. This means that PPE involves a sizable range of equipment. There are several ways to classify them such as how gears could be physiological or environmental. The following list, however, sorts personal protective equipment according to function and body area.

Inhalation is a major route of exposure that occurs when an individual breathes in polluted air which enters the respiratory tract. Identification of the pollutant uptake by the respiratory system can determine how the resulting exposure contributes to the dose. In this way, the mechanism of pollutant uptake by the respiratory system can be used to predict potential health impacts within the human population.

<span class="mw-page-title-main">Hierarchy of hazard controls</span> System used in industry to eliminate or minimize exposure to hazards

Hierarchy of hazard control is a system used in industry to prioritize possible interventions to minimize or eliminate exposure to hazards. It is a widely accepted system promoted by numerous safety organizations. This concept is taught to managers in industry, to be promoted as standard practice in the workplace. It has also been used to inform public policy, in fields such as road safety. Various illustrations are used to depict this system, most commonly a triangle.

The National Personal Protective Technology Laboratory (NPPTL) is a research center within the National Institute for Occupational Safety and Health located in Pittsburgh, Pennsylvania, devoted to research on personal protective equipment (PPE). The NPPTL was created in 2001 at the request of the U.S. Congress, in response to a recognized need for improved research in PPE and technologies. It focuses on experimentation and recommendations for respirator masks, by ensuring a level of standard filter efficiency, and develops criteria for testing and developing PPE.

Engineering controls are strategies designed to protect workers from hazardous conditions by placing a barrier between the worker and the hazard or by removing a hazardous substance through air ventilation. Engineering controls involve a physical change to the workplace itself, rather than relying on workers' behavior or requiring workers to wear protective clothing.

<span class="mw-page-title-main">Respirator assigned protection factors</span>

The respiratory protective devices (RPD) can protect workers only if their protective properties are adequate to the conditions in the workplace. Therefore, specialists have developed criteria for the selection of proper, adequate respirators, including the Assigned Protection Factors (APF) - the decrease of the concentration of harmful substances in the inhaled air, which to be provided with timely and proper use of a certified respirator of certain types (design) by taught and trained workers, when the employer performs an effective respiratory protective device programme.

<span class="mw-page-title-main">Chemical protective clothing</span>

Chemical protective clothing (CPC) is clothing worn to shield those who work with chemicals from the effects of chemical hazards that can cause injuries on the job. It provides a last line of defense for chemical safety; it does not replace more proactive measures like engineering controls.

<span class="mw-page-title-main">Workplace respirator testing</span> Testing of respirators in real life conditions

Respirators, also known as respiratory protective equipment (RPE) or respiratory protective devices (RPD), are used in some workplaces to protect workers from air contaminants. Initially, respirator effectiveness was tested in laboratories, but in the late 1960s it was found that these tests gave misleading results regarding the level of protection provided. In the 1970s, workplace-based respirator testing became routine in industrialized countries, leading to a dramatic reduction in the claimed efficacy of many respirator types and new guidelines on how to select the appropriate respirator for a given environment.

The health and safety hazards of nanomaterials include the potential toxicity of various types of nanomaterials, as well as fire and dust explosion hazards. Because nanotechnology is a recent development, the health and safety effects of exposures to nanomaterials, and what levels of exposure may be acceptable, are subjects of ongoing research. Of the possible hazards, inhalation exposure appears to present the most concern, with animal studies showing pulmonary effects such as inflammation, fibrosis, and carcinogenicity for some nanomaterials. Skin contact and ingestion exposure, and dust explosion hazards, are also a concern.

<span class="mw-page-title-main">N95 respirator</span> Particulate respirator meeting the N95 standard

An N95 respirator is a disposable filtering facepiece respirator or reusable elastomeric respirator filter that meets the U.S. National Institute for Occupational Safety and Health (NIOSH) N95 standard of air filtration, filtering at least 95% of airborne particles that have a mass median aerodynamic diameter of 0.3 micrometers under 42 CFR 84, effective July 10, 1995. A surgical N95 is also rated against fluids, and is regulated by the US Food and Drug Administration under 21 CFR 878.4040, in addition to NIOSH 42 CFR 84. 42 CFR 84, the federal standard which the N95 is part of, was created to address shortcomings in the prior United States Bureau of Mines respirator testing standards, as well as tuberculosis outbreaks, caused by the HIV/AIDS epidemic in the United States. Since then, N95 respirator has continued to be solidified as a source control measure in various pandemics that have been experienced in the United States and Canada, including the 2009 swine flu and the COVID-19 pandemic.

<span class="mw-page-title-main">Workplace hazard controls for COVID-19</span> Prevention measures for COVID-19

Hazard controls for COVID-19 in workplaces are the application of occupational safety and health methodologies for hazard controls to the prevention of COVID-19. Multiple layers of controls are recommended, including measures such as remote work and flextime, personal protective equipment (PPE) and face coverings, social distancing, and enhanced cleaning programs. Recently, engineering controls have been emphasized, particularly stressing the importance of HVAC systems meeting a minimum of 5 air changes per hour with ventilation or MERV-13 filters, as well as the installation of UVGI systems in public areas.

<span class="mw-page-title-main">Medical gown</span> Type of personal protective equipment worn by medical professionals

Medical gowns are hospital gowns worn by medical professionals as personal protective equipment (PPE) in order to provide a barrier between patient and professional. Whereas patient gowns are flimsy often with exposed backs and arms, PPE gowns, as seen below in the cardiac surgeon photograph, cover most of the exposed skin surfaces of the professional medics.

<span class="mw-page-title-main">Source control (respiratory disease)</span> Strategy for reducing disease transmission

Source control is a strategy for reducing disease transmission by blocking respiratory secretions produced through breathing, speaking, coughing, sneezing or singing. Multiple source control techniques can be used in hospitals, but for the general public wearing personal protective equipment during epidemics or pandemics, respirators provide the greatest source control, followed by surgical masks, with cloth face masks recommended for use by the public only when there are shortages of both respirators and surgical masks.

<span class="mw-page-title-main">Elastomeric respirator</span> Respirator with a rubber face seal

Elastomeric respirators, also called reusable air-purifying respirators, seal to the face with elastomeric material, which may be a natural or synthetic rubber. They are generally reusable. Full-face versions of elastomeric respirators seal better and protect the eyes.

An occupational infectious disease is an infectious disease that is contracted at the workplace. Biological hazards (biohazards) include infectious microorganisms such as viruses, bacteria and toxins produced by those organisms such as anthrax.

References

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  2. ↑ Funderburk, Greg; McGowan, Dennis; Stumph, Charles (2015). Weapons of Mass Destruction. LawTech Publishing Group. ISBN   978-1-56325-283-9.
  3. ↑ Lynteris, Christos (18 August 2018). "Plague Masks: The Visual Emergence of Anti-Epidemic Personal Protection Equipment". Medical Anthropology. 37 (6): 442–457. doi: 10.1080/01459740.2017.1423072 . hdl: 10023/16472 . ISSN   0145-9740. PMID   30427733.
  4. 1 2 3 4 5 Verbeek, Jos H; Rajamaki, Blair; Ijaz, Sharea; Sauni, Riitta; Toomey, Elaine; Blackwood, Bronagh; Tikka, Christina; Ruotsalainen, Jani H; Kilinc Balci, F Selcen (2020-05-15). "Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body fluids in healthcare staff". Cochrane Database of Systematic Reviews. 2020 (5): CD011621. doi:10.1002/14651858.cd011621.pub5. hdl: 1983/b7069408-3bf6-457a-9c6f-ecc38c00ee48 . ISSN   1465-1858. PMC   8785899 . PMID   32412096.
  5. 1 2 3 4 Respirators Archived 2012-08-30 at the Wayback Machine . National Institute for Occupational Safety and Health.
  6. 1 2 "N95 Respirators and Surgical Masks (Face Masks)". United States Food and Drug Administration . 5 April 2020. Retrieved 18 April 2020.
  7. ↑ "Selecting the right Respiratory Protective Equipment (RPE) for the job" Archived 2012-11-08 at the Wayback Machine . Healthy Working Lives. 2008-4-4
  8. ↑ CDC - NIOSH - Respirator Fact Sheet Archived 2017-09-28 at the Wayback Machine . The National Personal Protective Technology Laboratory.
  9. ↑ "Respiratory Protection Against Airborne Infectious Agents for Health Care Workers: Do surgical masks protect workers?" (OSH Answers Fact Sheets). Canadian Centre for Occupational Health and Safety. 2017-02-28. Retrieved 2020-04-18.
  10. ↑ NIOSH Recommended Guidelines for Personal Respiratory Protection of Workers in Health-care Facilities Potentially Exposed to Tuberculosis. 1992.
  11. 1 2 3 4 5 CDC - Skin Exposures and Effects - NIOSH Workplace Safety and Health Topic Archived 2012-08-06 at the Wayback Machine . The National Institute for Occupational Safety and Health.
  12. ↑ Luque, John S. (2019). ""I Think the Temperature was 110 Degrees!": Work Safety Discussions Among Hispanic Farmworkers". Journal of Agromedicine. 24 (1): 15–25. doi:10.1080/1059924x.2018.1536572. PMC   7045709 . PMID   30317928.
  13. 1 2 CDC - Eye Safety - NIOSH Workplace Safety and Health Topic Archived 2017-07-07 at the Wayback Machine . The National Institute for Occupational Safety and Health.
  14. 1 2 3 4 5 6 7 CDC - Eye Safety - Eye Safety for Emergency Response and Disaster Recovery Archived 2017-09-02 at the Wayback Machine . The National Institute for Occupational Safety and Health.
  15. 1 2 3 CDC - Noise and Hearing Loss Prevention - Facts and Statistics - NIOSH Workplace Safety and Health Topic Archived 2016-07-03 at the Wayback Machine . The National Institute for Occuaptional Safety and Health.
  16. ↑ Occupational noise exposure - 1910.95 Archived 2015-04-02 at the Wayback Machine . The Occupational Safety and Health Administration.
  17. ↑ Criteria for a Recommended Standard: Occupational Noise Exposure Archived 2017-02-02 at the Wayback Machine . DHHS (NIOSH) Publication No. 98-126.
  18. ↑ Tikka, Christina; Verbeek, Jos H; Kateman, Erik; Morata, Thais C; Dreschler, Wouter A; Ferrite, Silvia (2017-07-07). "Interventions to prevent occupational noise-induced hearing loss". The Cochrane Database of Systematic Reviews. 2017 (7): CD006396. doi:10.1002/14651858.CD006396.pub4. ISSN   1469-493X. PMC   6353150 . PMID   28685503.
  19. ↑ "Personal Protective Equipment (PPE) On Sale". PPEIN.
  20. ↑ CDC - NIOSH Science Blog - Brain Injury in the NFL Archived 2012-12-20 at Wikiwix. The National Institute for Occupational Safety and Health.
  21. ↑ Lehman, EJ; Hein, MJ; Baron, SL; Gersic, CM (2012). "Neurodegenerative causes of death among retired National Football League players". Neurology. 79 (19): 1970–4. doi:10.1212/WNL.0b013e31826daf50. PMC   4098841 . PMID   22955124.
  22. 1 2 "Larry Flynt's Hustler Video Cited by Cal/OSHA over Condoms, Safety, Says AHF". businesswire.com. 2011-03-31. Archived from the original on 6 August 2016. Retrieved 6 May 2018.
  23. 1 2 US Government, National Defense Authorization Act for Fiscal Year 2022, Section 802, enacted 15 March 2022, accessed 2 January 2023
  24. ↑ "Council Directive 89/686/EEC of 21 December 1989 on the approximation of the laws of the Member States relating to personal protective equipment". europa.eu. 30 December 1989. Retrieved 6 May 2018.
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