Bests & Worsts Reviews from Amazon

I recently ordered this mask. I thought it would be smart to have a more protective mask for higher risk situations like being on a plane or working out with my trainer. So i wore it once while i worked out with my trainer (he was wearing a standard reusable mask) and I got Covid. I’m 99% certain I contracted from my trainer because he tested positive 4 days after our workout and then I tested positive. So you judge for yourself on its effectiveness.