Have tried many other air filters but keep going back to this one. It outperforms all others I have tried. The service company that services our furnace offers discount filters but after trying them and having to replace them every month, we actually saved money by purchasing the Filtrete which lasts 3 months. My husband and I both suffer from seasonal allergies so having a quality air filter in our home is very important to us. You will not be disappointed in this filter. [This review was collected as part of a promotion.]