https://youtu.be/epzCzUfAf-E

Use what you have DIY 3-Layer Structured Cloth & Paper towel Face mask for immediate use while waiting for purchased surgical mask, cloth face masks or better materials to arrive. Video Format: After initial intro, and Overhead tutorial, if you are interested in making this mask, there is additional video content to answer most of your questions. _______________________________________________ Chapters: 0:00- Introduction 0:45- Overhead Tutorial 2:25- Trying on mask; End of 1st part of video 4:09- Office Hours for Cloth Omega Mask Build 4:30- - Size of cloth cut from T-shirt 7.25”x11.25” (18.5x28.5cm) 4:40 -Video excerpt of cutting T-shirt piece -Size of paper towel 7”x5.5” (17.75x14cm) -Size of Acetate Frame 1.25”x8.5” (3x22cm) 0.005 mil thickness 5:50-Video making paper/acetate frame w/ hole punch pattern. 10:35-Safety pins & two stitches are alternative options. 11:33-Tips on using the binder clips. What angle to place them? 12:00-Why did you make the cloth face mask 7” wide? 12:26-Why didn’t you add a bendable metal nose? WHY USE THIS DESIGN/MATERIALS? _______________________________________________ Based on the design by Jeremy Howard https://masks4all.co . The goal of the Masks4all initiative is to try provide 80% of the population with a non-medical facial covering to slow the spread of COVID-19 and help to safely reopen the economy. Face masks are a part of a 4 point plan of hand hygiene, social distancing, face masks in crowded or indoor public spaces, and widespread testing with contact tracing. For the Masks4all design, they recommend 2 layers of 100% cotton and 1 paper towel as a filter. The paper towel can be substituted with better filter material such as non-woven melt-blown polypropylene HEPA filter material, Filti face mask filters, or even shop towels. _______________________________________________ Items you will need (Most you can find at your office) •100% Cotton T-shirt (Makes ~10 masks) •11” wide paper towel (Bounty or other 2 ply kitchen towel) •#19 Rubber Bands: 3 1/2” x 1/16” •Small Binder clips: 3/4” wide •Acetate Film 0.005 mil: 8.5”x11” or 9”x 12” (extra can be used to make face shields.) I looked some up and they are pretty expensive. They don't sell them in individual sheets, only packs of 20-100. So I don't want you guys to spend that, unless you plan to make face shields for donations or for your own business use when reopening up small businesses, such as the cashiers, or hairstylists/barbers. Workers who spend a lot of time within a couple of feet from customers. Alternatives to the Acetate frame (using 3D printing to make a frame was not a viable option to reach everyone.) •The goal is not to buy anything more than you need or want to. There must be some stiff, bendable material which you can find at home. Channel your inner MacGyver. •If you can find some transparency/acetate pages at work, use that. •If you have clear folders at home, use that. If you only have a folder which is made of card stock, use that. •Some people have laminating sleeves which would also work. •A 2 liter bottle in theory could be cut into a long rectangular piece and punch holes in that •Some junk mail actually uses pretty good plastic or laminated card material to make their advertisement stand out. You can use that and cut a strip to use. It will be hidden inside the mask anyway, so don't worry. Tools: •Large Scissors, •Single Hole puncher- That’s it. ____________________________________________ Reusable parts: You only make the “Frame” once and it can be used multiple times and disinfected using alcohol. Binder clips and rubber bands can be also be disinfected with alcohol. Cloth will be hand washed during hand hygiene and air dried. A new paper towel insert or filter material will be replaced between uses. Please share with your friends and family on Social Media. If you have any questions please comment, I will try to reply and improve the description to cover and Frequently Asked Questions. Best, Dr. Yang

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