NORTHWEST ENTERPRISES Vent Filters, 48 Floor Vent Register Filters - 4"x12", 90 Day Filtration

fits my vents perfectly

The filters seem to be good quality. They were easy to install. I will find out this winter how well they filter out the dust.

Was thinner then expected and had to double up to get the type of filtration I was looking for. Other then that works perfectly. I bought double sided tape to use because my vents run horizontal and not vertical.

I used these for the vents in the ceiling. These are a little thinner than My previous vent filters, but should do the job fine.

Put in floor registers and these are so small that they fall right into the vent. Don't want to place on the exterior so I had to fold and attach in weird ways which will make them thicker and reduce air circulation. Cheap but will catch the large debris that may come through from recently cleaned ducts and carpeting.

These work, but be aware, you shouldn't put these on all of your vent outlets, or it may put undue strain on your central fan. I only had a couple of vents that were blowing out junk because of a mouse or something nesting in there, so it worked for me. If your entire duct system is nasty, you might want to go another route.

These are good for keeping out dirt from our vents. We live in the Mohave Desert and the venting under our manufactured home was horrible. They keep it out but also cut down on some Heat/AC that the vents provide.

Had to cut them to fit my vents

As advertised

The filters seem to work well. They were a little flimsy but does the job. Since the vents in my house are different sizes, I got the larger ones and cut the ones down for shorter vents. Everything worked out great!

It is great

We get a fine dust in our place. Thinking these filters would help stop that, we tried them. PROBLEM: merely having them in place caused water condensation buildup/leak from the furnace when running the AC. Of course we removed them from the vents, and the problem stopped.It's also quite a bit of labor to size and cut the filters to just the right size, only to have to remove them after a couple weeks.Another point: though they were in for two weeks, there wasn't any dust or dirt on any of them, so it's strange that they blocked the airflow to some extent (putting more stress on the furnace) but seemed to do little-to-nothing about dust.

Used them for a few days, my sons room get so much dust. Was hoping it would help with that, but it did t just created back pressure to our AC unit

I live in the country and that dirt road and all the dust that settles in the house makes you crazy. I can dust and by the next day it will look as if I have not dusted for weeks. after putting these in the vents it has helped so much with keeping the dust down. I am beyond pleased.

Relatively easy to install. Can be cut with scissors to fit your vent. I measured mine and ordered the appropriate size but discovered during installation that no two vents in my house are the same size. Required a long slim stick to work the filters through and around the vent fins on the underside of the floor vent. This took the most time but was not difficult. These filters will keep hair & large dust particles from circulating out of the vent when the a.c. or heat is running. I have noticed an improvement in my allergy symptoms which is why I installed them.