We have been having a dust problem, living in an older home. This filter has helped reduce the dust significantly.

I bought several 4" filters for my central Heating & air system. I have been very impressed with the performance of these filters.

I bought these a year ago buy the unit (6). I love the way they work taking everything bad out of my air in the house.

i have used this product for 7 years. there is no comparison to this filter. i have saved money from technicians who would like to clean the unit.

Just had new A/C - Heat system installed in my house and the technician recommended this filter to be used with new system and giving it a try.

Use these exclusively; feel they really help lessen breathing problems caused by having two cats and a dog in the house.

I have used these filters for years now. The price is a little high but it works out since the filters work well for three months.

Very good on catching dust!! Filtrete has the best filters out there!! Will be buying this from now on!

These filters do an excellent job! I always swap them out twice yearly and they keep the air in my home clean and fresh.

I've had no problems with the filters. I have used 1" lesser brands and had trouble with allergies. This filter is much better