Filters are well made and perform as advertised. I purchased these for my central air system. I have had these only a few weeks so to determine how well they work compared to the ones I used to purchase from the big box store. I am expecting they will out perform the ones I used to purchase, based on the performance I received from the ones I purchased for my furnace. I have noticed less dust in the house since upgrading my furnace filters to the Filter Buy product.
I recently purchased one filter on a test basis. It is doing exactly what it was advertised to do; therefore, I plan to purchase more in the near future.
[This review was collected as part of a promotion.] My 18 month old baby has severe allergies and with the Merv 13 filter she is symptom free while in the house. Now sleeps like the baby she is. Simply amazing!