... etc Based on technology of lanthanon low temperature nano-catalyst, which effectively decompose volatile compounds like methyl aldehyde, ... colibacillus and Staphylococcus aureus is over 95%.the catalyst component will be constant, which can be used ... .Mainly used in air-conditioner, central air-conditioner, air-fresh machine, heating fan, air-conditioner fans, humidifier etc. Cold Catalyst Air Filter