pocket air filter

Product Overview

Avg.efficiency|   Color|   Arrestance|   Using
30-35%  |  white|   92%  |   Pre-filter for the middle efficiency filter
40-45%   |  orange|  96%  |  Commercial building, airport
60-65%   |  green|  97%  |  Automobile painting room
80-85%   |  pink|  98%  |  Petrochemical industry