Questions and Answers for Web 4 in. x 12 in. Vent Filters (12-Pack)

A:  Sorry, we don't recommend doubling up on your air filter. This can restrict the air flow back to your blower motor. Thanks

A:  No

A:  Possibly, depending on how dirty and what type of "dirt" they trapped. They are soft kind of like polyester fiberfill. You can vacuum some stuff out but I just changed them out when they got dirty. They weren't expensive. They were really helpful until we were able to get our ductwork cleaned.

A:  Yes, Our vent filters are safe for your system. We did recommend only using them in the areas of your home that you're in the most. Bedroom, bathroom, living room, kitchen to prevent air flow restrictions back to your system. Thanks

A:  The package does not state specifically where they are manufactured. There is company information on the package where you could find out: Protect Plus Industries/Web Products Hickory, NC 28601 U.S.A. Questions: 888-808-9100 www.protectplus.com

A:  It says right on the bottom of the front of the package, made in the USA.

A:  Our vent filter has not been designed to be compatible with the the standard window AC units. For a product designed to be used with the window AC units, please check out our 15 in. x 24 in. x 1/4 in. Window AC FPR 2 Washable Filter (12-Pack) on homedepot.com.

A:  This product does not contain fiberglass. This product is made of a polyester blend of media.

A:  No unfortunately these register filters do not stop or block the smell,

A:  I don't think it will block the smell.

A:  Our Vent filters have an FPR of 2.