Filtrete 20x20x1, AC Furnace Air Filter, MPR 1200, Allergen Defense Odor Reduction, 2-Pack (exact dimensions 19.69 x 19.69 x 0.81)

You can smell the activated charcoal fits perfect on my mask box fan

These do a great job of keeping the air fresh and free of pet odor. Well worth the money

Great quality, great price, fast shipping (if you have prime)... cant beat it.

It seems to be doing a good job eliminating odors. Just installed today though.

They seem to work fine

Works great I smoke in the house when wife’s gone and turn the fan to on for 30 minutes smells gone. I did purchase the 2 pack on sale for 25 I believe but if forced I would pay full price to restock!

Its seams better then the regular filter I can feal the difference no more stuff nose I have notice a difference its been 12hrs, one happy allergy free client.

Love these! I have two litters of kittens! I have to replace them so much

filtrete for me is the best filter, i only buy this brand coz its reliable and pretty happy the way i see the result....

I opened the box to this filter and there were tiny parts of the black part everywhere no good . Will be returning