Customer reviews from Filterbuy
Filterbuy - 20x21x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (3-Pack) - Blue
Average customer rating
4.6
(3,408 Reviews)
Rating breakdown 3,408 reviews
5 Stars
2,706
4 Stars
301
3 Stars
184
2 Stars
73
1 Star
144
Customer Reviews for Filterbuy - 20x21x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (3-Pack) - Blue
Customer Rating
5
The filters are excellent; we
on July 13, 2025
Posted by: Anonymous
The filters are excellent; we noticed after the uses of a few filters there was not as much dust in the house
Written by a customer while visiting Filterbuy
Customer Rating
5
Good filters cheap
on July 9, 2025
Posted by: Anonymous
I use 20x20 filters with box fans for cheap air filtration, so I go through them quickly, these have a higher merv for less than half the price of the filters I used to use.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great
on July 7, 2025
Posted by: Braydon M.
Greta product only problem is on me I bought the wrong size
Written by a customer while visiting Filterbuy
Customer Rating
5
Migraines Gone!
on July 7, 2025
Posted by: Leovardo G.
Best filter hands down. Instant change in the air and best part is my wifes migraines / allergies are gone. Definitely going to subscribe. Worth every penny.
Written by a customer while visiting Filterbuy
Customer Rating
5
Upgrade filtering
on July 5, 2025
Posted by: Anonymous
Using merv11 still left me dusting every week. I will see if Merv13 changes that
Written by a customer while visiting Filterbuy
Customer Rating
5
Great price!
on July 5, 2025
Posted by: Pete J.
Great price on these filters! So far they're working great
Written by a customer while visiting Filterbuy
Customer Rating
5
Merv 13
on July 4, 2025
Posted by: Anonymous
No more dust on flat surfaces! Definitely worth the extra money.
Written by a customer while visiting Filterbuy
Customer Rating
5
The Best Filters!
on July 3, 2025
Posted by: Anonymous
I have been using these filters for a while and always recommend to friends and family. They definitely help with the allergies and help maintain the life of the unit. Thank you.
Written by a customer while visiting Filterbuy