Review on 💧 Enhanced Filtration: Polypropylene Electrostatic Non Woven for Maximum Efficiency by Chris Lemm

The ability to filter filters is the real deal. I live in a 748 ft house with 2 children, 2 adults, 3 cats, a dog and 2 gerbils. We have a lot going on in a small space and I take the air quality in our house very seriously. I use various sensors throughout the house to monitor conditions. I placed these filters on top of the merv13 filters to capture the ultrafine particles that pass through the merv 13 filters on all of our air purifiers and heaters. After 3 weeks I started seeing small particles on one side and not the back meaning the filter was doing its job of trapping the particles and not letting them through. This also applies if you look closely through a magnifying glass. That's great news compared to another Merve 16 filter that failed my test and was sent back for particles making it to the back. This filter seems really capable of capturing at least ultrafine dust particles. I can't speak to its ability to capture viruses and such, but I can say with certainty that it captures ultrafine dust particles.