How to prevent smoking and alarm in dormitory?
Recommended Rui Roth /RESDA high sensitive smoke alarm, the time is short, and can detect the environment PM2.5.
Generally installed in the bedroom smoke, smoke a few cigarettes will not alarm, there is not so high sensitivity. If the home bedroom, alarm, alarm is not related; if outside, such as hotels, smoking, risk is still great. There's a way to prevent smoke alarms, but I don't want to say anything.
There is a smoke control cigarette smoke monitor, which has a high sensitivity and rapid response to cigarette smoke. Smoke proof alarm
