HEPA stands for High Efficiency Particulate Air filters and they are super-efficient. They will range from 17-20 MERV. HEPA filters meet standards that remove at least 99.97% of airborne particles down to the size of 0.3 microns.
Also know, what is a HEPA filter for respirator?
In all, the 3M 6291 HEPA Mask is the best masks we offer. With NIOSH P100 filtration, this respirator is one of the most versatile available today. It is completely sealed, non latex, HEPA grade, and you can replace the filters when necessary.
What does a HEPA filter remove?
Using HEPA filters can trap these pollutants and may help bring allergy relief. HEPA stands for high-efficiency particulate air. A HEPA filter is a type of mechanical air filter; it works by forcing air through a fine mesh that traps harmful particles such as pollen, pet dander, dust mites, and tobacco smoke.
Do HEPA filters filter out smoke?
HEPA filters alone do not capture chemicals, fumes, and cigarette smoke because their microns are smaller than 0.3. This is why it is important to purchase a HEPA air filter that includes an activated carbon filter that will capture these allergens that the HEPA cannot.