Avg.efficiency |
Color |
Arrestance |
Using |
30-35% |
White |
92% |
Pre-filter for the middle efficiency filter |
40-45% |
Orange |
96% |
Commercial building,theather,station,airport |
60-65% |
Green |
97% |
Automobile painting room, school, computer room |
80-85% |
Pink |
98% |
Plastics industry, pharmaceutical factory, food products factory, painting factory, electrical factory, hospital, laboratory, dust-free room |
90-95% |
Yellow |
99% |
Precise electronics industry, national defense factory, sterile room, aseptic workshop |