clorox air filters clorox 18x20x1 air filter, merv 8 with carbon, reduces pet smells, cooking smells and more, pleated hvac ac furnace filter, 4-pack (actual size 17.75 x 19.75 x 0.75), made in usa merv 8 odor is up for auction in Home & Kitchen. The current bid is $1.50, 97% below the $49.00 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.