This thing will scream every time you take a shower, not from steam, but from the increased humidity. I had this in a bedroom down the hall from the bathroom. Even if I take a lukewarm shower with the exhaust fan running- the mirror doesn't even fog- once I open the bathroom door this thing starts screeching the song of its people. Last night I could smell the neighbor's barbecue grill- no smoke that I could see- this thing begins screeching. I hit the silence button, keeps screeching, pulled out the disable tab, keeps screeching, pry out the battery- finally stops. In the quest to create a sensitive alarm that awakens you early, First Alert has created a useless thing that constantly screams FIRE! in innocent circumstances.