When I asked my partner to choice up some air filters the other day, I was surprised when he came back with the cheapest air filters he could find. She was glad because he said he found the best deal on air filters plus they were the right size for our Heating plus A/C system. She was severely disappointed when I told his to please take them back. She asked instantly what the problem was. She thought I was just being a mean grouch as I recognize I do act like occasionally. But this was more of a severe complication than anything else. I would not use cheap air filters in my Heating plus A/C method because they won’t improve the air quality plus they don’t protect your Heating plus A/C system. By using these air filters that he picked up, every one of us might end up experiencing Heating plus A/C concerns down the road plus our children might have trouble breathing with exhausting air quality. I didn’t want to do that at all, I didn’t care if the air filters were free! Well, it was exhausting because he said the store refused to take back the air filters. That’s when I took the air filters plus went myself. I showed them the receipt plus I told them my partner was misled on the quality of these air filters. They tried to supply myself and others the same issue about not being able to return items that were on sale, however I made a substantial issue of it. They ended up processing the return because they didn’t want to deal with myself and others plus I ended up getting some quality air filters with a high MERV rating. Now in my partner’s defense, I really should have told his not to get cheap air filters with a low MERV rating, however I just assumed he would guess that.