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

Just received, just wanted to leave a review to add later: Packaging: good. Filters are supplied in reusable bags in packs of 5 layers: this is 5 layers according to the product description. In the section, two outer thin "cloth" layers are visible, followed by two thicker filters and a black layer in the middle (assuming it's real coal). Airflow seems adequate, but actual use case will follow an updated review.