Review on 50 PCS PM 2.5 Filters: Activated Carbon Filter Replacement Pack (50 pcs) by Tiffany Scofield

Excellent quality filter. Arrived quickly, packaged securely, each individual cartridge has approximately 4 attached filters that can be easily torn off without damaging the integrity of the filter. We've used them with some face masks purchased on Etsy. They fit comfortably on a child and small face mask and are a bit small for a medium/large face mask but cover the nose and mouth area just enough. I recommend and will buy again.