For bulk orders (more than 100 masks) email us at support@adhviq.com

 NOTE:

AdhviQ's mask products above are not certified by the FDA at this time.  This notice will be revised as soon as AdhviQ completes the approval process. At this time, the mask products are offered for general public use only.

They should all be worn with a back strap (clip) for better face sealing to achieve filtration efficiency >95%.