Customer reviews from Filterbuy
Filterbuy - 9x30x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Blue
Average customer rating
4.6
(3,404 Reviews)
Rating breakdown 3,404 reviews
5 Stars
2,702
4 Stars
301
3 Stars
184
2 Stars
73
1 Star
144
Customer Reviews for Filterbuy - 9x30x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Blue
Customer Rating
5
Incredible company
on March 3, 2026
Posted by: Anonymous
Who are the little elves who made my custom sized filters & sent them on their merry way , in a blink ?
Written by a customer while visiting Filterbuy
Customer Rating
1
Filter
on March 3, 2026
Posted by: Anonymous
These filters are a bit oversized and do not fit properly
Written by a customer while visiting Filterbuy
Customer Rating
2
I didnt try yet
on March 3, 2026
Posted by: Anonymous
So I gave you two starts because I havent tried your filters yet when the season gets warmer I will let you know then
Written by a customer while visiting Filterbuy
Customer Rating
4
the filter is a little
on March 2, 2026
Posted by: Anonymous
the filter is a little smaller than it should be the other filters I buy fit more tighter than yours
Written by a customer while visiting Filterbuy
Customer Rating
5
reduces dust
on March 2, 2026
Posted by: Anonymous
The Merv 13 makes a noticeable difference with dust and allergies. I change them every season and the automatic yearly renewal makes it easy.
Written by a customer while visiting Filterbuy
Customer Rating
5
New buyer
on March 2, 2026
Posted by: Anonymous
Appears to be a great filter. First time buyer. Will see how it works out over time.
Written by a customer while visiting Filterbuy
Customer Rating
5
High quality filters
on March 2, 2026
Posted by: Anonymous
High quality filters that are reasonably priced. They ship very quickly
Written by a customer while visiting Filterbuy
Customer Rating
5
Great for my Corsi-Rosenthal Boxes
on March 1, 2026
Posted by: Anonymous
Buying replacements for my Corsi-Rosenthal Boxes. Good value home air filters. I also buy my HVAC filter here. Would recommend this site to all my friends.
Written by a customer while visiting Filterbuy