Satisfying to know this is now in my home.
Device works creating suction with the simple plunger action. Other brands require a substantial push against the face of the victim, which could be a problem in many cases-especially trying to help yourself. Easy to keep handy out of the case, because when you need it you need it NOW!
This product is a game changer! My mother is 91 years old and this product will play a major role in keeping her safe!