Customer reviews from Filterbuy
Filterbuy - 18x18x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Blue
Average customer rating
4.4
(5,904 Reviews)
Rating breakdown 5,904 reviews
5 Stars
4,406
4 Stars
555
3 Stars
405
2 Stars
201
1 Star
337
Customer Reviews for Filterbuy - 18x18x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Blue
Customer Rating
5
Used to remove smoke.
on April 17, 2026
Posted by: Customer
I have an IQ air purifier, I have a merv 11 prefilter, then 2 Merv 13 Filters stacked, Effectively giving me a HEPA filtration with good air flow.
Written by a customer while visiting Filterbuy
Customer Rating
5
What a reasonable price
on April 16, 2026
Posted by: Customer
I needed a new filter for my furnace, and the local big box stores and local hardware stores did not have my size. I looked on line and FilterBuy' s responses were quick and all was accomplished.
Written by a customer while visiting Filterbuy
Customer Rating
1
Like them so far
on April 16, 2026
Posted by: Customer
I think they will trap a lot of dust and debris. .
Written by a customer while visiting Filterbuy
Customer Rating
5
Perfect fit and my home
on April 16, 2026
Posted by: Customer
Perfect fit and my home stays pretty dust free even when I don't run the air purifiers.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great filter at a great price
on April 16, 2026
Posted by: Customer
Filterbuy is the only place that i can find affordable options for my weird sized filter. Last filter i used feom them was MERV 11 now trying the merv 13 since i have bad allergies to see if it helps. So far so good
Written by a customer while visiting Filterbuy
Customer Rating
3
I cannot give an adequate
on April 15, 2026
Posted by: Customer
I cannot give an adequate review because I have not used them since the purchase. I will be using them once the previous filter is done.
Written by a customer while visiting Filterbuy
Customer Rating
5
Merv 13 Filter
on April 13, 2026
Posted by: Customer
Shipped fast, waiting to see how they perform after a few months.
First time using this brand, so need to wait and see how it works.
First time using this brand, so need to wait and see how it works.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great filters
on April 12, 2026
Posted by: Customer
I wouldn’t buy filters from any other place. Quality of product is excellent. I have bad allergies and these filters keep my air exceptionally clean. Not 1 asthma attack last year! Thank you filterbuy
Written by a customer while visiting Filterbuy