Description ***CLICK EXTRAS TAB TO SEE MORE PICTURES***

This stopgap sealed facemask with remote air inake should provide better protection than  a disposable mask+face shield, uses readily available components.

It is quick to prepare -- it requires no 3D print.  A mask can be prepared in less than 5 minutes.  I am in the DC area and can drop off a prototype if that is helpful.

Full face snorkel masks seal off the entire face while providing effective anti-fogging and good visibility.  The air input on the breathing tube is distance from the bedside, reducing ingest risk.  A disposible facemask attached to the end of the air tube with rubber band provides some filtering.

Credits

This design is a variation on the design described at https://hackaday.io/project/170580-filtered-face-mask. The main differences are:

1. The location of the air input is further from the bedside in this design and oriented away from the bedside. This is especially advantageous for procedures like intubation that require close work.
2. The filter is a disposable face mask, which is likely to be readily available to healthcare providers. It can therefore be replaced at regular intervals as needed.

It is simplified version of designs using 3D printed adapters for filters, which have been used in Italy and which are available on the NIH site already.  Those designs may provide better filtering, but take much longer to prepare.

Parts List

1. Full face snorkel mask
2. Disposable face mask or scrap of surgical tool fabric
3. Rubber band or zip tie

Required Tools

1. Flathead screwdiver: used to remove cap from end of breathing tube

Procedure : (<5 minutes)

1. Remove mask and tube from packaging.
2. Remove protective plastic film, if any, from mask.
3. Use the screwdriver to pop the end cap off the breathing tube.
4. Remove the ball from the breathing tube. It should easily fall out.
5. Attach the filter cloth / mask over the end of the breathing tube with rubber band or zip tie, taking care to cover all openings.
6. Put mask on and adjust straps for good seal to face.

Example mask -- many similar models are available

Divelux full face snorkel

Available for example at https://www.amazon.com/DIVELUX-Full-Face-Snorkel-Book/dp/B07L7DPMH7/ref=sr_1_1?crid=2H8QLEF7ZF7KF

($33.99)