Ventilaider Complete Air Vent Register Filter Set Cut To Fit Any Size 16" x 60" & 50" Velcro Tape, Electrostatic Fabric. Purifies Air, Helps Reduce Allergies From Dusty Ducts, AC Furnace System (2)

Have original vents in an 1947 house. Couldn’t find size. Cost too much to make custom sized vents. Works great. Can’t tell the filter is cover the face of the vent. Easy to use. Only wish more tape had been provided so I could have gotten a tighter seal. Still bought more for all of the other vents.

Love this product. Easy to cut and install.

This was exactly what I was looking for to use as a pre-filter elements for an xTool F1 Ultra. Nice distribution of fibers without restricting too much air flow. On the down side--the velcro is completely worthless. If a reasonably good quality velcro cannot be included in the package, then the supplier is better off not including any at all.

The filter is great for the purpose of collecting dust and lint, the only problem is the double sided tape is very weak considering this is meant to hold over an air vent. The Velcro was unsticking once in a while and wasn’t holding very well. Otherwise it’s great and big to fit many covers.

This product arrived on time and the package was in perfect condition. These were super easy to cut and install. I do wish that it came with more Velcro or had an option to add on an extra roll of it for a more secure fit. Despite not having enough Velcro, I am giving this product 5 stars since it doesn’t reduce any airflow like I thought it might. Will up date my review in a few weeks once I determine if it has helped with allergies. **Update** Sticking with 5 stars. This product was a godsend while waiting for my landlord to clean the air ducts. Worked better than the $200 air purifiers I purchased.

These extended the life of our furnace filters.

These used to be great: poofy to catch particulates without blocking air flow. These new versions are very dense and thin, like a thick felt, air flow is very blocked. For my air vents these are completely unusable, however I might be able to upcycled them in the place of felt for craft projects.

The material was pristine white before I cut it to size and added the adhesive tape on it to stick it onto my furnace/AC air duct vents. I would have put them on the inside as my sister does in her home; but i am in a rental, and the screws and frames have been painted over so many times, i was concerned that it would ruin the textured walls when taking vents off. The vents are a creamy white, and after a while I didn't even think about them being on the vents. this is a picture of how black they became on the lower wall cold air return vents after 3 months - I have serious environmental and animal allergies, and this building has a dog or cat in almost every unit. I hoped that these filters would help, along with installing and changing my own better quality HEPA/Allergen filters in the furnace. The owners of this complex only have our maintenance man change the AC/Furnace filters in the units just twice a year (they are the "builders' special" lowest quality filters that you can get. I buy my own and change them every two months - sometimes they have lasted 3 months, but they do become just as dirty as the vent filters. Although I'm still sneezing, and my nose still drips, at least it is not as bad as before I did this.

As described, good quality, good price for its use. Item is not broken upon arrival of item! Will buy it again! RECOMMENDED!!!!!!!

We cut it and put it on the ventilators and it almost blocked the air flow by 85-90 percent!!

using it for my inner for ac to prevent dust from going to duct. so far so good