Additional exhalation valve for drapes/respirators/masks

thingiverse

A vital upgrade for homemade face masks: an additional exhalation valve. A rubber diaphragm is carefully cut from an inflatable balloon and securely attached to the elevated center section of the valve body using a strong adhesive. Updated designs include different grid patterns that eliminate the need for supports, and a revised cover with no supports whatsoever. This streamlined design offers greater flexibility and ease of use. To further enhance functionality, a stencil has been added to ensure accurate placement of the hole's central point. A press-fit version is now available for fabric masks, allowing users to create a seamless seal without the need for additional support. A small amount of glue can be applied depending on the thickness of the fabric and the printer's calibration settings.