Iuri's Workshop's video: DIY Winter Face Mask

These are videos related to the manufacture and testing of masks. Protective mask testing: https://youtu.be/jvFaBnuFP8M Mask and goggles from available materials: https://youtu.be/vgFGguEkB6k Respirator # 3: https://youtu.be/udzYUsiYH0k Respirator # 2: https://youtu.be/QODJN3UHluA Gas Mask: https://youtu.be/-5HhjDENfFQ The cold came, and all the shortcomings of the factory masks were immediately revealed. Firstly, the masks immediately began to condense moisture, and secondly, when using them, the lenses of the glasses began to fog up. Taking into account the above and the existing developments in the field of protective equipment, I have designed a respirator that is devoid of most of the known disadvantages. The respirator is equipped with serious inlet and outlet filters. Thanks to the rigid body, the respirator is securely pressed against the face. The magnetic latch makes it easy to put on and take off the respirator. The respirator is equipped with a membrane that transmits high sound frequencies when speaking, which significantly increases speech intelligibility. The bonus of this respirator is your smile that everyone can see. List of materials 1. PET bottle 5L - 3pcs. 2. PET bottle 3L - 1pc. 3. PET bottle for milk or juice - 8 pcs. 4. Surgical glove - 1 pc. 5. Neodymium ring magnets - 2 pcs. 6. Screw M2.5x8 - 8 pcs. 7. Nut М2.5 - 16 pcs. 8. Washer М2,5 - 8 pcs. 9. Elastic band - 700mm 10. Double-sided adhesive tape - 900x12mm 11. Staple clips - 8 pcs. 12. Polyethylene foam - 4x40x400mm 13. Polypropylene film - Ø70x0.03mm 14. Foam rubber filter - Ø35x4mm - 2 pcs. 15. HEPA filter - Ø45mm 16. Steel plate - 1x8x96mm 17. Thick paper 400x5x0.35mm Download the drawing: https://oldoctober.com/youtube/Respirator_Valve_Parts_Drawing.pdf Mirror: https://drive.google.com/file/d/18-95pg0qTG5-XBSr9xXaMr-8OxDkc0x3/view?usp=sharing