SIP Airtight Drinking Valve for Masks and Respirators rapidwinter Full Flange all around the

Full Flange all around the mask perimeter improves the face seal

Straps: Braided Elastic

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Provide Nutrition to Joints

the unique three-panel flat fold design is collapse resistant and its individual packaging allows for easy storage prior to use

SIP Airtight Drinking Valve for Masks and Respirators rapidwinter Full Flange all around theNow you can drink in crowded spaces without removing or touching your mask! SIP is an AIRTIGHT valve that automatically SEALS after each sip. The SIP valve grips and seals around the straw when drinking, and then closes to recreate a fully AIRTIGHT SEAL when the straw is removed. SIP can be installed on any disposable mask or respirator Easy self install in a couple minutes Install higher or lower to meet your mouth position For use on any disposable