Cleans the air and is very easy to install, and doesn't slow down the air handling system. Only downside is the price - I sometimes must buy the lesser quality depending on the month's budget.
This is THE best filter on the market. I trust Filtrete and know the difference in cheaper brands - My A/C unit starts whistling when the filter is clogged....other filters don't do the job! 3M is the best.
With a pet in the house we spent the money for what we thought was the BEST filter. We happened to have a furnace issue and the repair man told us that it was his opinion we should get the filter in the middle because the air would flow better. We purchased the next lowest rated one by filtrete and it seems to work the same.