FILTI16x20x1 Air Filter MERV 13 | Pleated Home Air Filter | HVAC AC Furnace Filter MADE IN USA (4 Pack)

Merv 13s are the way to go! They are the best filters.

Oops...I ordered the wrong size.

The filters were exactly what I ordered. They arrived quickly and were well packaged.

Have only tried one of these filters so far. And compared to the ones we get at Walmart or Lowes/Home Depot, for rough same price if not lower, you are getting a better, more efficient filter.It was great after a month at filtering pet hair, lint, and dust, etc. But it didn't seem to be half as dirty as the one I used before this one after a full month of use. It probably could have gone another 2 weeks, or maybe another month before needing replacement. But we have alot of dogs so, try to change it every month, especially if the A/C or furnace is running constantly during the winter and summer seasons.It also seemed to cut down more on the amount of dust particle about the house as well.Build quality seems great, very solid and not flimsy or cheap feeling.Although the only thing i noticed after a full month of use, is that there is some type of film used in the filtering process that becomes a little ravaged by the airflow. 😕😕😕I will keep an eye out for it next filter change and try to update my post with pictures. 😎👍

These are perfect for making a mini-Corsi-Rosenthal box. Easy to attach to the fan and base.

Recently our outside PM 2.5 outside air quality went to the hazardous range. The inside air quality was up to moderate. I turned the recycle air on, and within just a few minutes the quality was in the very good range. These filters really work to remove these pollutants. If you live in an area with air quality problems, you might consider getting a PM 2.5 meter so you can know when to recirculate the air with these filters installed.

The filters fit well and are holding up well.

Came in package of 4 ,high hepa filtration. Great bargain.