KN95 Mask: Things You Need to Know Before Buying

KN95 is the abbreviation of the regulatory standard for the screening of certified facial respirators in China. The normative standard refers to a design that ensures efficient filtration, a tight seal with the forehead, and minimal leakage.

It is important to mention that the requirements for the KN95 certificate are almost the same as the requirements for the N95 face filter respirator in the United States. You can also look for the best black KN95 mask at

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Therefore, both KN95 and N95 offer the same level of protection according to international standards and certificates.

What do KN95 masks protect you from?

KN95 masks must provide effective respiratory protection from all particles, including bacteria and viruses. It also provides 95% protection against all particles larger than 0.3 m in diameter.

This means that the mask must protect you from bacteria, viruses, contamination, fine dust, dust, smog, and pollen, and reduce the risk of bacterial and viral infections.

How long can you use a KN95 mask?

American N95 and Chinese KN95 masks are manufactured and designed for single use (single-use design). This means that each new user requires a new mask. However, due to the shortage of N95 and KN95 masks, the CDC recommends the reuse of single-use filter respirators as a crisis capacity strategy.

According to NIOSH, masks such as the N95 and KN95 can be reused (only if stored properly between uses and only if used by the same person) and used over a long time (meaning the person wears the same mask continuously for a long time).