Just stumbled upong this Indiegogo project from a Canadian startup called VYZR Technologies
https://www.indiegogo.com/projects/biovyzr-venture-out-breathe-easy#/
They raised \$500k+ so far and according Forbes they "sold tens of thousands" of those already.
The video of the project has 2.2M views at the moment
https://www.youtube.com/watch?v=F18_IXxwL-A