Customer reviews from Filterbuy
Filterbuy - 30x30x4 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Blue
Average customer rating
4.1
(1,153 Reviews)
Rating breakdown 1,153 reviews
5 Stars
714
4 Stars
109
3 Stars
127
2 Stars
88
1 Star
115
Customer Reviews for Filterbuy - 30x30x4 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Blue
Customer Rating
5
Hospital grade filters.
on September 16, 2026
Posted by: Customer
I have end stage COPD and was very happy to find a hospital grade filter that doesn't block the furnice air flow. It works great. Thank you filterbuy.
Written by a customer while visiting Filterbuy
Customer Rating
2
Pleats are inconsistent
on September 16, 2026
Posted by: Customer
As a pharmacist, we used similar pre-filters on our HEPA laminar hoods. They had consistent and stronger pleats. Filterbuy sells me poorly constructed filters. I’d pay more for better quality.
Written by a customer while visiting Filterbuy
Customer Rating
2
Spam Company
on September 15, 2026
Posted by: Customer
Buying Filterbuy Filter means getting your inbox filled with spam. Don't ask me to unsubscribe because I never subscribed in the first place.
Written by a customer while visiting Filterbuy
Customer Rating
5
I have been buying home
on September 15, 2026
Posted by: Customer
I have been buying home air handling filters from Filterbuy for years. Very pleased with the quality and perforomance of the filters and will continue to buy them online.
Written by a customer while visiting Filterbuy
Customer Rating
5
Haven't got replacement yet
on September 12, 2026
Posted by: Customer
I got my filters really quick but they were much smaller than the one I had. The product was 16x 25 x 4. The filters I took out of my ac were also printed that size. The lesson learned is forget what it says on your filter. Look at the filter edge till you find actual size. Big difference. Return was easy. Just waiting on replacements b
Written by a customer while visiting Filterbuy
Customer Rating
5
Efficient filter
on September 7, 2026
Posted by: Customer
I purchased these filters because they will remove most of the dust and pollen from the air for my air-conditioning system. Since I live in the northeast, I only use the system during the summer months and really only go through one filter a year. I have the next six years covered.
They were a good price.
They were a good price.
Written by a customer while visiting Filterbuy
Customer Rating
5
Fast service on a good quality product
on September 3, 2026
Posted by: Customer
We’ve been using the MERV 13 filters for a couple of years now, and have been very pleased with the results. Worth the slight additional cost.
Written by a customer while visiting Filterbuy
Customer Rating
5
love the price and quality
on August 28, 2026
Posted by: Customer
love the price and quality of the filters have been buying from you for 7 years now. We could have never done the fires here in Idaho without the filters from you guys.
Written by a customer while visiting Filterbuy