nutone carbon postfilters MERVP1224208_thickness_2 Replace pre-filters every year and

Replace pre-filters every year and carbon filters every 6 months

Lifespan: 4 years

1x Formaldzorb Canister Insert

Excellent bi-directional efficiency

Non-favourable to bacterial or fungus growth

nutone carbon postfilters MERVP1224208_thickness_2 Replace pre-filters every year andPackage contains one filter change. Carbon postfilters to remove odours and gases. These filters should be installed in the small track closest to the furnace, on the air outflow side of the air cleaner cabinet. The filters should be spaced evenly from the back to the front of the cabinet, with gaps between the filters. By design, the filters will not fill the entire depth of the cabinet. Lifespan: 3 6 months