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
Merv 13 filters are very good
on May 7, 2026
Posted by: Customer
I have had no issues with my filters, I believe they are very good.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great filters
on May 7, 2026
Posted by: Customer
These are great filters. MERV13 is one of the best grade of filter and these do the job. They fit well in to the return grille and catch most of the contaminants- dust, dog hair etc. I have them delivered on a schedule so I always have a replacement when needed.
Written by a customer while visiting Filterbuy
Customer Rating
3
Questionable filter rating
on May 4, 2026
Posted by: Customer
Bought MERV 13 rated filter. Well constructed, however, I am doubtful of its MERV 13 rating.
It has half the pleats of an equivalent 3M MPR 1500 filter. So either it does not filter the same micron size of particles out or it is much more restrictive due to smaller surface area. Either way it may not be a good filter.
The MERV 8 filter has same number of pleats as the MERV 13, which doesn’t make sense.
It has half the pleats of an equivalent 3M MPR 1500 filter. So either it does not filter the same micron size of particles out or it is much more restrictive due to smaller surface area. Either way it may not be a good filter.
The MERV 8 filter has same number of pleats as the MERV 13, which doesn’t make sense.
Written by a customer while visiting Filterbuy
Customer Rating
5
I very much like the
on May 4, 2026
Posted by: Customer
I very much like the business model and subscription for these filters. At this point, I have not run my air conditioning or heat since getting the filters. Once the air conditioning season begins, I will be glad to let you know how they work for me.
Written by a customer while visiting Filterbuy
Customer Rating
5
It's an air filter
on May 4, 2026
Posted by: Customer
Does what it should. Change it often. Gets dirty fast. It would be nice if you made this size with Carbon/Charcoal for filtering/reducing odors.
Written by a customer while visiting Filterbuy
Customer Rating
5
Just installed it for the first time.
on May 3, 2026
Posted by: Customer
So far easy install. I have a very tight area to install my filter so it being a little smaller than the actual size helps it go right in. I’ll let you know my thoughts in a month.
Written by a customer while visiting Filterbuy
Customer Rating
5
Love This Subscription
on May 3, 2026
Posted by: Customer
Great filters with adjustable buy times they work good it's a perfect match
Written by a customer while visiting Filterbuy
Customer Rating
5
Great value
on May 2, 2026
Posted by: Customer
We used to use a nationally-recognized name brand filter. These MERV 13 filters are just as effective and efficient as far as we can tell and are a much better value.
Written by a customer while visiting Filterbuy