Bests & Worsts Reviews from Amazon

Got my pack in the mail today and confirmed the manufacturer first (Chengde Technology Co. KN95, indeed listed in FDA's Appendix A (EUA authorized non-NIOSH approved respirator), which was on the back of the packaging, as well as on a package insert (see photos). I also confirmed the model was marked as GB2626 - 2019 on the packaging and on the masks. Overall, I was impressed by the quality of the masks - they seem higher quality and are more comfortable than others I've bought. However, most importantly, the masks made a good seal on my face with just the ear loops. Adding on an "ear protector" mask strap definitely made an adequate seal around my face, similar to the seal made with the Powecom FFP2 with the headband straps (without the ear loops).