PM2.5 Activated Carbon Filter (pack of 10)

Details:

Spunbonded cloth filters micron-level dust.
PM2.5 (Particulate matter 2.5 microns).
Conforms to standards GB2626-2006.
Active carbon cloth filters atmospheric particulate matter.
Reduces inhalation of particles such as haze, dust, pollen and motor vehicle exhaust emissions.
Recommended to replace filter every 1 to 3 days, depending on use.