The external layer’s function is to protect the filter. We also created masks with different external designs to enable you to choose the one you like most and feels most comfortable according to the frequency and type of use.
Our masks are always easily washable with cold water. And, the fabric used is resistant to harsh weather and atmospheric conditions.
In ¨Aire filters¨ there are different layers of dust collectors that help to effectively remove large to moderate-size particles (fine dust) from the air, that penetrates into your respiratory system.
FFP2/N95 filters have 7 layers
FFP3/N99 filters have 9 layers
PM2.5 refers to atmospheric particulate matter (PM) that have a diameter less 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.
Fine particles can come from various sources. They include power plants, motor vehicles, air planes, residential wood burning, forest fires, agricultural burning, volcanic eruptions and dust storms.