BNX TruFilter 20x20x1 MERV 13 (4-Pack) AC Furnace Air Filter - MADE IN USA - Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters - Removes Pollen, Mold, Bacteria, Smoke (Actual Size: 19 11/16’’ x 19 11/16’’ x 3/4‘’)

This filters were packaged nicely and seem to work great - plenty of airflow and Im glad I switched from Merv8 to Merv13

I received these furnace filters as part of the companys testing program. Overall, I would say these filters are comparable to other filters of the same MERV13 spec. I have been using these filters for about a month now, and can say that I have not noticed a drastic difference in comparison to other filters I have used. I would consider this a good thing in that there is not obvious decline in quality since switching to these filters. As you can see in my third picture, the in-use filter has turned black/gray so it would appear that it is doing its job. Pricing per filter is comparable, and may even be slightly more expensive, than some brands. I do like that these are an American-made product! A few things I have noticed, these filters do not do quite as good of a job at filtering out odors as the carbon-infused MERV11 filters I have used in the past. Also, all 4 of my filters I received were sealed within the same bag. I wish they would be individually sealed to avoid dust and particle contamination during storage until they are used. Other buyers have expressed some concerns over product durability and manufacturing quality. As you can see in my pictures, the filter grooves are not uniformly spaced across the entire filter. Good filter overall. Happy to support American-made products. Will consider purchasing them again when the time comes for me to purchase more filters.

These filters work great in my two story home. They collect everything including dog hair from my three dogs who shed yearly.

The filter is not a heavy duty type but is okay compared to a very basic one that youll find at any retailer store

heater and air conditioning, duct filter, to keep dust out of home.

We’ll see how much stuff these things catch in 3 months. Good value for the money as replacement filters.

Mervyn 13 great quality and price.

These filters are amazing and made in the USA!! We suffer from what seem like year round allergies here in Florida and it’s starting to get worse. We picked up these filters to make a CR box to give it a go. These filters have worked wonders and I’d use them for any thing that requires a filter. I plan to switch all my filters the this brand from now on!

be able to see how well they are working. I decided to use my filters to construct a corsi Rosenthal box to help clean the air in my home. I am immunocompromised and wanted to take steps to make it safer for me and my loved ones to gather. Its pretty incredible how noticeably cleaner the air felt after turning on the fan and letting the filters go for a few hours. I have awful seasonal allergies that have basically dissappeared this year because of these filters. So even if youre not using them to prevent illness, I still highly recommend them for any type of environmental allergies. After a month of using these filters, they have visibly started looking a bit dirty and have picked up so much dust and cat hair. They are really doing a great job in cleaning the air in such a short amount of time. I have been recommending these to my friends and family. After these filters become too dirty, I am absolutely getting more. I cant believe Ive lived so long breathing in dirty air. Never again

Great quality filter.