Full Face Snorkeling Mask Respirator Filter Conversion by HenryAlfredo

Last crawled date: 4 years, 1 month ago

Convert your snorkeling mask into a respirator.
Filter has a substantial volume which you can fill with any material at hand. Have used it already extensively with activated carbon during spray painting indoors.
Rubber 5/4" gasket ensures airtight seal. I've already made an adapter which fits to the noname brand snorkeling mask, will make one for the Decathlon mask soon.
Printing instructions(WIP)
Preferably print in ABS and seal with acetone to keep all parts clean and airtight.
DOP_3 is preferably printed in 200 micron layers heights. The rest can be printed in 300 microns (although 200 is better). No support needed on any part.
Assembly instructions (WIP)
You're best off dropping some acetone into CAP_2 and rolling it around, brushing excess of following the threadings. Same goes for DOP_3. After you have used acetone to join the threads and sealed all the prints, leave it for an hour at least to dry. Don't try to acetone two sides of a print at once it will leave ugly fingermarks.
After drying screw DOP_3 and CAP_2 on and off repeatedly until no chafings are coming off, and treat it again with acetone.This seals the print and strengthens the screw thread.
CAP_2 is the recommend bottom screwcap for closing up the filter from underneath as it has tolerant dimensions. The bottom seal relies on pressing your filter material underneath AFTEKEN_RING_3 against GASMASKER_FILTER_5 by screwing it together, friction keeps it in place.
AFTEKEN_RING_3 doubles as a template to cut filter material to size.
CAP_3.STL is a tighter fit and not recommended.
Clean all parts thoroughly before and in between uses. Preferably store in a sealed bag when not in use.
Viral Filter concept
The best DIY viral filter buildup i can come up with household materials now is:
AMBIENT AIR - 1 LAYER OF DISH TOWEL, 2 LAYERS OF KITCHEN TOWEL, 2 LAYERS OF VACUUM CLEANER BAG, 2 LAYERS OF TISSUES, COTTON BALLS, 1 LAYER OF COTTON T-SHIRT, -USER
https://smartairfilters.com/en/blog/best-materials-make-diy-face-mask-virus/https://smartairfilters.com/en/blog/paper-towel-effective-against-viruses-diy-mask/https://smartairfilters.com/en/blog/diy-homemade-mask-protect-virus-coronavirus/https://www.consumer.org.hk/ws_en/news/2020/covid-19-diymasks?fbclid=IwAR3kJO1b4vFGtmijvE_sRvVUN7OHaX1YyiGnJNYkAE9zd49SlJ0A0_RPVVo
Design history
Based on the GP-5 40mm screw thread standard. Thats how this design began, a way to replace my used GP-5 gasmask filters. As such can be directly screwed on the GP-5 mask.
See: https://www.instagram.com/p/BzDeL8WoGLT/
Disclaimer
Use at own risk. Depending on the pressure drop of how you stuffed the filter usage duration should be limited. As a precaution don't use for longer than 45-60 minutes, or alone.