I think your service is great. I don’t think it is the masks from you, I have not found any that stay on my ears. Very frustrating, I wear glasses and yadda yadda. I will always wear a mask as long as necessary, but it is not easy. Thanks for your good service and that includes answering emails.
These valved masks are much easier to breathe than the n95 masks without the valve. Highly reccoomend these to anyone who has trouble breathing in masks for prolonged periods
Very easy to breathe in these compared to other KN95s. Will certainly buy more in the near future.