Millennium P.
Steer clear of this company...
We have several brand new Breathometer boxed products that are completely useless, as the company has discontinued the App that is needed to make the hardware work. Many attempts to contact the company have been ignored and go unanswered. The owner, Charles Michael Yin, has the opportunity to lend legitimacy to his company and at least respond, but at this point, that has not happened. No choice here but to warn others about this shady company so that other people don't get duped.