Скачать или смотреть No-sew sealed mask in 4 minutes (heat sealer technique)

CORRECTION: First annotation says polyethylene, should say polypropylene

I've been wearing a mask of this type when out and about for over a week. It maintains its seal to the face very well, and since the whole mask surface is filter material it offers low breathing resistance.

This technique also works with Halyard H600 material, but you will need to use more heat and hit the joints from both sides.

If you are making masks for distribution, seal the mask in to a polybag (not shown) and heat sterilize it without opening the bag. Since it's sealed in a polybag you can easily boil and dry it since no water should get through the bag.

I am not affiliated with ebay links, they are just where I bought my material and I've been happy with it.

Materials list:
-Mold-blown polypropylene 7" wide, 8" long
-- Blue waterproof layer (https://www.ebay.com/itm/Outer-Layer-...)
-- Filter layer (https://www.ebay.com/itm/Melt-blown-N...)
-- White waterproof layer
Fusible elastic, 2x 7" lengths (https://www.ebay.com/itm/100M-3mm-Rou...)
Aluminum nose strips (https://www.ebay.com/itm/100x-Aluminu...)
Optional variant: a 4" length of pipe cleaner sealed between layers of the mask can also work as a nose stiffener
Tools:
8" impulse sealer (Metronic)
Cutting mat
Utility knife
Ruler
Optional: Kapton tape for smoother release from heat-sealer
Optional: Corrugated cardboard, neodynium magnets and tape for the handling/alignment clamp