28x34x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack cloning-&-seed-starting meaning that it has been

meaning that it has been treated with a small amount of a denaturant to make it unfit for human consumption

only 30% of the energy used in air conditioning is converted into usable cooling power—the rest is wasted

-Resists tearing and fraying

Pink bollworm

Replace filter cartridge or unit per manufacturer guidelines based on water quality and usage volume

28x34x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack cloning-&-seed-starting meaning that it has beenNordic Pure Custom MERV 8 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition