That smoke alarm is there to save your life so unless you are removing the bag every night before you go to bed you are negating the effectiveness of it actually doing what it's supposed to do.
When I started vaping I was setting my smoke alarm off daily. My solution is to run a fan in the room to move the air around and keep the vapor from pooling on the ceiling and setting the alarm off. Works a charm. Invest in a cheap fan (I paid $20 for mine) because it's gonna be a pain in the .... putting the bag on and then taking it off every night before bedtime. Eventually you'll forget or get lazy and just be leaving it there all the time.
