🌬️ Dust Proof Activated 5 Layer Replaceable Anti Fog Face Mask: Ultimate Protection and Clarity Review

Bought these to ensure we never run out of filters just after my good friend passed away due to COVID-19. They fit all of our masks and none of us got sick. So I think they work.

Not all masks I have can use them. I feel safer with those who do. As far as I know they work as advertised. I feel comfortable and safe knowing I have these inserts in the mask. Hopefully we won't have to wear masks as much before they go out.

They fit perfectly in my fabric mask bag which is designed for an extra filter. I use a double mask, using a surgical mask on my face and a cloth mask with a filter inserted over the surgical mask. I have no breathing problems and the filter fits perfectly. I received them in 3 days despite a strong storm. There were sellers who offered the lowest price and their delivery time was almost 30 days. These were the exact same ones that came with my sheet masks when I bought them.