What are the advantages of N95 masks N95 was the first standard proposed by the national institute for occupational safety and health (NIOSH). "N" means "not suitable for oily particles" and "95" means the barrier to 0.3 micron particles under NIOSH standard test conditions. The rate must be higher than 95%.

Therefore, N95 is not a specific product name, but should be a standard, as long as NIOSH reviews and implements the standard mask can be called "N95."

The N95 mask usually has a breathing valve device that looks like a pig's snout, so the N95 is often referred to as a "pig mask". In protective tests of particles below PM2.5, N95 had a transmittance of less than 0.5%, meaning that more than 99% of the particles were blocked.

Therefore, the N95 mask can be used for occupational respiratory protection, including protection against certain microbial particles (such as the viral bacterium bacillus mycobacterium tuberculosis anthrax), and the N95 is undoubtedly a good filter in the common mask protection effect.

However, while the protection of the N95 is high compared to the protection of ordinary masks, there are still some performance limitations that make the N95 mask not suitable for everyone, and it is not foolproof protection.

First, the N95 has poor air permeability and comfort, and high respiratory resistance when wearing. It is not suitable for the elderly with chronic respiratory diseases and heart failure for a long time to avoid breathing difficulties.

Secondly, when wearing N95 mask, attention should be paid to clamp the nose clip and tighten the jaw. The mask should be tightly fitted to the face to prevent air particles from being inhaled through the gap between the mask and the face, but because each person's face is very different, it can cause leakage if the mask is not designed to match the user's face.

In addition, N95 masks are not cleanable and are valid for 40 hours or 1 month, so the cost is significantly higher than other masks. Therefore, consumers cannot buy N95 blindly, because it has a good protective effect. When purchasing N95 masks, full consideration should be given to the purpose of protection and the special circumstances of the user.

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