Judith McKenzie's team modified a sewed mask design to include a filter and nose clip for a better seal.
GREEN GIRLS FACE MASK
COMPONENTS: The mask is made of 2 layers of pre-washed, fine cotton, with a pocket in which a filter can be inserted. There is also an opening in which to insert a nose clip to allow for a better seal. The nose clip is made from two pipe cleaners twisted together, with the ends curled under for safety (see video). The ear/head pieces are made of elastic. An optional filter made of non-woven microfiber can be added.
These materials/designs are provided "as is" with no express or implied warranties of merchantability or fitness for a particular purpose or any other warranty (express or implied). Penn makes no representation or warranty that the use of the materials will not infringe any patent or other proprietary or intellectual property rights of any third party.