🌬️ Nordic Pure 20x25x5 MERV 13 Pleated Plus Carbon Honeywell Replacement AC Furnace Air Filters 2 Pack - Superior Filtration for Optimal Indoor Air Quality Review

Nordic Pure filters are very high quality and inexpensive. I've been using them for years and have tried several other brands in that time but have never found one that has such a good design. Recently, our neighbor's house burned down and a lot of smoke entered our house. Running an HVAC fan with my MERV13 on charcoal helped filter out the smoke so there wasn't a bad smell in the house. I was glad I had a filter!

I loved adding the carbon layer. However, we quickly reverted to the same non-charcoal filter because my stove shut down after only a few weeks (apparently the extra layer created too much resistance). I went back to the same filter without the charcoal and they are great (and last 4 months instead of 2 weeks). I haven't tried to get a refund or send it back yet; not sure how to do it.

Compared to the HVAC manufacturer's genuine Merv 13 carbon filter, this filter is significantly inferior. The Merv rating is not listed on the product so I would not trust any filters sold by this manufacturer. Without the Merv rating clearly stated on the filter itself (only the label on the outer shipping box is untrustworthy), how do you know what you're getting? And the price is only a few dollars cheaper than the original OEM filter. I'm returning it and buying an OEM filter that is…