What Does PM2.5 Filter Mean?
PM2. … PM2. 5 refers to atmospheric particulate matter (PM) that have a diameter of fewer than 2.5 micrometers, which is about 3% the diameter of a human hair. Commonly written as PM2.5, particles in this category are so small that they can only be detected with an electron microscope.
What Does N95 Mean?
N95 Respirators. An N95 respirator is a respiratory protective device designed to achieve a very close facial fit and very efficient filtration of airborne particles. The ‘N95‘ designation means that when subjected to careful testing, the respirator blocks at least 95 percent of very small (0.3 micron) test particles.
This is a 5 layer, PM2.5 air mask breathing filters. It is suggested that you replace the filters after every week of use. Protect your mouth and face from gases, noxious smells, pollen, smoke, dust, and other harmful particles. For Adult mouth mask that requires a filter.
Size:4.9”x3.1” /12.5x8cm Material: PP anti-sticking cloth + meltblown cloth + activated carbon cloth
Uses: Anti-odor, anti-dust, anti-gas, anti-bacterial, anti-PM2.5
Occasion: Mask Filter
Type: Mask Filter
Cover Area: Lower Half Face
Age Group: Adults
Mask Material: PP anti-sticking cloth + meltblown cloth + activated carbon cloth