Activated carbon is widely used to absorb odor/fume in ventilation system. Since the process of activated carbon filter was developed and built up by our engineers in Y2003, we had been successful to obtain the UL certificate, RoHS issued SGS and etc. we are getting more and more trust in quality and good service from our customer. Aluminum foil mesh with high absorption efficiency for oil smoke; -Activated carbon filter with strong function to absorbing odor; -Size depending customer’s demand; -Safety level: UL Certificate, Class 1 and Class 2 ;