I like the added protection of these filters. Instead of changing filters every month, I now go every two months. Helps remove the allergens and dust inside the home.

There are filters that cost less, but this filter is worth more. It fits the slot in the heating/cooling system better than most. It does such a good job of filtering that housework is easier because of less dust everywhere!

Love that this is a 4 pack (I have two furnaces). I have purchased these several times and have arrived perfectly. I which they were on sale more often. Actually I wish I could have these delivered automatically several times a year.

These are great quality filters. My AC/Heating Serviceman highly recommended them. They are not like the thin garbage ones offered at the home improvement stores.

I really like these filters. They seem to filter the air better than anything I've used. I have COPD and I can feel the difference in air quality. They may be a bit more expensive but I feel they are worth the few dollars extra!

Nice and solid. Not wimpy and fragile. I haven't used them long enough to know about how well they work, but they are definitely far better than the cheapest ones!

Very good filter for my house HVAC unit. I have lot of construction going around my house and this filter works very good without putting load my unit.

Great quality for the price. I have used others very strong filters as I have cats. They were supposed to last 90 days but did NOT. These filters appear to be staying clean.

My son is allegic to most things that grow in our area. His dictor recommended using these filters with fan running 8 hours a day to filter air. The Doctor said an air purifier is no comparison, because this does the whole house at once.

I been using these filters for a long time. Change them every 60 days. Highly recommend them. When I have my furnace inspected every season, they tell me it looks great.