Air can pass through the HengYou filter mesh, but tiny particles cannot.
The effective rate is 99.7% for 0.1 micron and 0.3 micron, and the removal efficiency can reach 99.97% for particles with a diameter of 0.3 micron (1/200 of hair diameter).
Removable components include: standard Dust Cigarette Smoke Bacteria (bacterial size: 500 to 0.3 microns), coal ash, pollen, radioactive particles, impurity ions, etc.
Average life span of HEPA is 6-9 months (depending on the using time and environment).
1.-Are you a trading company or manufacturer?
2.-What kinds of filter do you produce?
-It covers for air filter,oil filter,fuel filter for car and truck.
3.-How many years did you do filter?
-We have more than 10 years making experience
4.-Is Customized filter available?
-Yes,please offer your required specifications and drawing
5.-Do you Accept OEM service?
6.-what's your delivery terms?
-1)FOB 2)CFR 3)CIF
7.-What's your Delivery Time?
-1)generally the samples will be sent immediately by the air express in 3-5 days if the goods are in stock
2)Normally within 30 days,please confirm with us before order!