Mega Filter - MERV 13 20x20x1 Air Filters For Home With Activated Carbon - Filters Allergens, Pet Dander, Smoke, Dust - Furnace and AC Filters - Air Filters 20x20x1 MERV 13 (4 Pack)

4X STRONGER FILTER: Mega Filter is 4X more efficient than lower grade filters at filtering contaminants 1-3 microns in size.* (Based on independent lab testing and typical MERV 13 and active carbon filtration performance, 2024. Results may vary.) ALLERGY RELIEF: Say goodbye to allergies and hello to cleaner air. Mega Filter high performance air filters 20x20x1 are the ultimate solution for filtering allergens, and pet dander.* (Based on independent lab testing and typical MERV 13 and active carbon filtration performance, 2024. Results may vary.) POWERFUL FILTRATION: Mega MERV 13 20x20x1 air filters feature a powerful 3 layer design, including a prefilter, a MERV 13 filter, and CarbonTech Active Carbon technology to filter particles up to 200X smaller than a human hair.* (Based on independent lab testing and typical MERV 13 and active carbon filtration performance, 2024.)