For a DeBreather to be lawful, the equipment must be able to be used without assistance. Any method that requires monitor- ing and possible intervention by another party presents legal risk. This was the concern that led to the abandonment in 2002 of the Smith- Hofsess model.
The R2D ReBreather, as demonstrated at the 2017 NuTech con- ference, solves the problem of air leakage. It does this by mak- ing use of a new generation of sealing facemasks. These masks incorporate an air-inflated cuff that seals to the face. These seal- ing facemasks were developed for home medical devices such as CPAP machines. The R2D ensures a reliable seal by providing a range of inflatable cuff facemasks. It also provides a chin strap (with a velcro attachment) to position and securely hold the mask in place.
The R2D ReBreather showing:
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Exposed facemask with inflatable cuff and connecting hose The twin sod lime carbon dioxide scrubber canisters