An N95 mask, or N95 respirator, is a mouth-watering particulate-purifying respirator made to the standards of N95, an air purifier of the U.S. National Institute for Occupational Safety and Health (NIOSH), which means that at least 95% of the sand is purified. And that's it.
But it is not entirely oil-resistant; Another criterion is P95, where this oil-resistant will be effective. N95 is always used to refine particles. [1] It is a mechanical purification respirator that protects the user from gases or vapors but not from sand
[2] These N95 masks may be associated with other respirators with their own rules in countries other than the United States. Such as the FFP2 respirator in the European Union and the KN95 respirator in China. However, somewhat different criteria are used based on their effectiveness in matters such as refining efficiency, test agent and flow rate, and acceptable pressure drop.
The N95 mask requires a fine mesh of synthetic polymer fibers, also known as fiberless polypropylene fabric, [5], which is produced by a process called molten flow that forms an internal refining layer. And it is at this internal level that all dangerous particles are refined. [৬]
Whenever workers use a tight-fitting respirator, the fittest becomes an essential factor in protecting the respiratory system. In the case of OSHA, it is necessary to identify the correct model, style, and size of the respirator for each employee and check the correct fit. Also, other tight-fitting respirators like the N95 need to check the user's seal every time they are fitted. Facial hair may come out at the place where the respirator is applied. [৭]
It is necessary to consult a doctor before using the respirator as breathing after the injection may be more difficult. In some cases, the use of respirators can lead to coronary heart disease, lung disease, and mental illness such as claustrophobia. [৮]
1. "NIOSH-Approved N95 Particulate Filtering Facepiece Respirators - A Suppliers List". U.S. National Institute for Occupational Safety and Health (in English). 2020-03-19. Date of collection 2020-03-28.
2. "Respirator Trusted-Source: Selection FAQs." U.S. National Institute for Occupational Safety and Health (in English). 2020-03-12. Date of collection 2020-03-28.
3. "Comparison of FFP2, KN95, and N95 and Other Filtering Facepiece Respirator Classes" (PDF). 3M Technical Data Bulletin. 2020-01-01. Archived from the original (PDF) on 2020-04-14. Date of collection 2020-03-28.
