3M 9833DC-6 Filtrete Dust & Pollen Filter 20x25x1 Inches, 6-Pack

Cheap 1-month filters protect your heating & cooling system from debris, but they don't remove a single speck of dust from the air. Step up to the Filtrete Dust & Pollen Filter and turn your heating & cooling system into a huge whole house air filter - removing allergens like Pollen, Mold Spores, Dust Mite Debris, Household Dust, and Lint. Like all 3M Filtrete filters, the Dust & Pollen filter lasts for 3 months, and is electrostatically charged, which helps it to attract even the smallest particles without restricting the airflow in your system.

The filters themselves are a good product. However, the way in which they are delivered is totally unacceptable. This specific UPS delivery was no different than any other. The shipping container(which happened to be the filter dispenser box)was crushed and filthy! Two of the twelve filters are crushed on one end. I believe however that they are usable. The problem is that every shipment I receive from UPS includes a damaged and filthy container. The drivers always put the package at the back door, knock lightly, run to their trucks, and speed off. There is never an opportunity to reject the delivery, because they are gone before anyone can reach the door. Suppliers using UPS to deliver their products must put an end to this!

I needed a certain size air filter that was not available in the stores. Filtrete had what I needed.

Purchased these and have been using them for about five months now. No problems. They fit the opening properly and appear to be catching everything. Don't know how much more you can say about a dust filter. ;)