These ASTM Level 3 MEDICAL MASKS are the BEST masks I have found on the market to date!!! I am now ordering my 3rd box, these are thicker and better quality then other masks including other ASTM Level 3 masks I have ordered during COVID-19, the foam strip across the top of this mask is a game changer, it creates a seal and I and actually feel secured to face, they are breathable and others can hear me clearly when talking!…I bought these particular ones because I saw my Pharmacist and Pharmacy Assistants wearing these, so I asked the name and tracked them down and I am sooo glad I did!! In my opinion these have kept our family safe to date!! We will continue to use this product even after the pandemic is declared over as they protect from other illnesses, viruses, bacteria, pollution & even kept my sever allergies at bay this Spring!! I honestly can’t say enough good things regarding these masks!! and for the safety of my family and myself, I will continue to purchase and recommend these masks to my entire family, friends and people looking for a Quality, Breathable, Disposable Medical mask!! I hope this review helps others to try them and see the difference a few extra dollars truly make!!