3M Air Filter (Set of 4)

So far so good... trusted the ratings on this one... time will tell... only used one at this present time... but, there does seem to be some improvement in the air in my home

I like very much how they work.

I've used this product repeatedly for over a decade. I'm extremely satisfied with it's performance.

Supposed to clean all dust, bacteria and viruses from the air. No irs if it really does but can’t hurt to get the best.

First two both said they were locked and I need to contact service. I didn’t want the hustle. Then it paired. A month later I checked it and not working again. Pulled the filter. It needed changing. Like first onr it wouldn’t pair. I am technically advanced. It should not be complicated. The online account only wanted my email, no password. I don’t like that. Good idea that has more work needed