particulate respirator that meets the N95 standard of the United States National Institute for Occupational Safety and Health (NIOSH) From Wikipedia, the free encyclopedia
A N95 is a type of respirator. A respirator is a type of mask that protects people from dust that makes them sick, like viruses.[1] N95s do not stop gases, poison gases, or vapors.[2]
| N95 | |
|---|---|
A N95 is worn to protect people from dust and viruses. There is also the word 'NIOSH' on the N95. | |
| Other name(s) | N95, N95 mask |
| Regulated by | National Institute for Occupational Safety and Health, Food and Drug Administration |
| Regulation | 42 CFR 84, 21 CFR 878.4040 |
| NIOSH schedule | TC-84A |
In the United States, it is against the rule of law to sell things that are not masks with the words 'N95'. Also, N95 masks that are not checked by NIOSH should not be sold.[3]
If you buy a N95, NIOSH should have checked your N95. NIOSH checks N95s to make sure the N95s work. The NIOSH CEL lists the N95s NIOSH has checked.[3]
A N95 always has the word 'NIOSH' on it. But some N95s that are not real have it too.[3]
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Some N95s say they are N95s, but are not. These are not checked by NIOSH. NIOSH only checks N95s that have the words 'TC-84A' with four numbers at the end. The words on the N95 are always on the CEL list.[3]
NIOSH has never checked a N95 that...
The list of rules NIOSH uses to check N95s is called '42 CFR 84',[5] not 'GB2626'.
For men, some beards may up the amount of air that goes by the N95. To keep the face seal, NIOSH has a beard guide for all N95 users.[6] See the picture for the guide.
In 1992, the CDC and the Labor Coalition to Fight TB in the Workplace were both worried about tuberculosis, a bacteria, making people sick in hospitals. People were in hospitals to get better from the HIV virus that made people's immune systems weak. This then made room for tuberculosis to infect them. People sick were both medical doctors and the public. Some doctors not sick with HIV were also sick with tuberculosis. This was likely from evolving tuberculosis. Medicine may not work with evolving tuberculosis.[7][8]
Before the N95 rules were done being made in 1995, the rules NIOSH used to check respirator masks were called '30 CFR 11'. The Mine Safety and Health Administration (MSHA) also checked respirator masks. They both said only HEPA masks could be used safely with tuberculosis. This cost too much money, so NIOSH made new '42 CFR 84' rules quickly. All '42 CFR 84' rules pass tuberculosis checks. This means N95s can be used safely with tuberculosis.[9]
Scientific papers have shown that N95s can be used safely with SARS. While SARS was around, doctors not using N95s got sick.[10]
Other scientific papers compared N95s with surgical masks by randomized control trial. But one scientific paper said that those randomized control trials were not done well, as you should not compare N95s with surgical masks if people are getting sick outside the hospital. The hospital is where people getting sick are counted or measured, but outside the hospital, people are not using N95s. People not using N95s, outside the hospital, are not counted or measured. Badly done scientific papers made people have problems finding real information on N95s during the COVID-19 pandemic.[11]
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