Review on Filtration Safeguard Comfortable Adjustable Perfect by Mark Marcellus

I have to say I was impressed with the filtration performance of this mask. They are excellent, fit well, are reasonably priced, well covered in plastic wrap and boxed. These masks are very comfortable, especially for people who wear glasses. They contain 3 filter layers making them thick enough to protect against most dust, bacteria, viruses and smoke. I feel like I'm getting oxygen and not CO2 when I breathe with these masks. 50 in a pack, I rarely run out so this is the right amount for me. Delivered on time and in good condition