Replacement P.M. 2.5 Filter
Replacement P.M. 2.5 Filter
Replacement P.M. 2.5 Filter
Replacement P.M. 2.5 Filter
Replacement P.M. 2.5 Filter

Replacement P.M. 2.5 Filter

Regular price
$20.00
Sale price
$18.00
Shipping calculated at checkout.
Quantity must be 1 or more

PM 2.5 filters are a special type of high-purity polytetrafluoroethylene (PTFE) membrane filter designed to capture these particulates in standard EPA test methods for monitoring air quality, and we are offering these filters to users with our masks.

PTFE is normally a very flexible material when made into a thin membrane, so these filters have a strong and rigid polypropylene support ring, enabling ease of handling and use. The PM 2.5 filters have a pore size rating of 2.0 microns and are tested to conform to the EPA requirement of DOP particle capture efficiency of 99.7% or better.

PM 2.5 particles are so named as they are smaller than 2.5 microns in size and represent a significant health risk to people. To compare sizes: human hair is about 100 microns across, and red blood cells are 8 microns across. PM 2.5s can travel deep into and lodge in the furthest parts of the human lung, putting people at elevated risk for respiratory and cardiac illnesses.

Change filters once a week unless working in heavy air environments like kitchens, polluted areas, etc.