Honeywell Furnace Filters Offer Advanced Filtering Features. Like 3M, Honeywell is another original equipment manufacturer (OEM) that makes a variety of industrial and consumer products.

Best Air also does not have a 20-by-25-by-1-inch filter in the database, but its 20-by-20-by-1-inch filter shows nearly identical numbers to the Honeywell filter — that is, double the resistance ...

Read CR's review of the Honeywell FC40R1003 air filter to find out if it's worth it. Ad-free. Influence-free. ... Furnace Filters, Air Conditioner Filters & Air Filters ...

We've tested and reviewed products since 1936. Read CR's review of the Honeywell Maximum Allergen FPR 10+ air filter to find out if it's worth it.