Valves for homemade masks Silcone one way valve 10pcs Fast USA Shipping

Description

10 Snap Together One Way Valves
Includes 10 inner rings, 10 Black Silicone Flappers, 10 Outer Covers
Outer Cover, snaps into inner ring, with mask material sandwiched between the two.
The inner ring diameter is 1 and 1/16 inches. The outside of the outer valve is 1.5 inches.   To instal, cut circle hole 1 and 1/16 inches wide in mask and push inner ring with flapper installed through the hole. Once inner ring is sticking through the mask snap outer ring on outside of mask. Inner ring and flapper will be on inside of the mask and outter cover will be on the outside of the mask.
These valves will work on homemade fabric masks/ commercial masks, making breathing easier since your CO2 will be expelled from the mask.