Love the way it reduces dust/mold allergens (that's what I'm allergic to). A bonus is not as much dusting in the winter months. Now that the A/C is running, we did run into a problem. Our furnace repairman said sometimes if the filter is "too good" it blocks the air flow. The water line was blocked (only took a moment to unclog), but seems to be okay now, so we are still using the "Best" Filtrete filters. It's been several weeks and everything is running great.
I have been using the Filtrete brand for years. I believe they are the best on the market. They are reasonably priced and the product itself is excellent.
After using the Filtrete Best Air Filter I noticed my air conditioning unit didn't come on as often, because the air was not only cleaner but also stayed cooler, so the filter made my unit more efficient. I also noticed the air was not stagnant but more fresher.
One day I went to change my Filtrete air filter on my furnace, and it came out BLACK. I freaked out, went to the internet IMMEDIATELY to your site to find out what went wrong. Your website is SO UP TO DATE which lead me to the problem FAST. My granddaughter and I were making candles a few days earlier, which was one of the choices on your site! It could have a fan blower problem, which would have cost A LOT, but after following your directions I checked the filter again (no candles this time) and the filter was totally white. THAT WAS SUCH A RELIEF! The Filtrete Filter kept that black smoke from off of my walls! Thank you so much. I always have a stack of them next to my furnace so changing it is never forgotten.