When buying or installing new ones, first check with your local fire department for the legal requirements and building codes for smoke alarms where you live (First Alert published a state-by-state list here)
The principal logo on the Bambu brand (or at least my favorite) is shown above left
For example, our top pick, the First Alert SM500V, uses two AA batteries, but many states now require models with 10-year sealed batteries
1 Chinese Market In the Chinese market, Black Devil brand cigarettes are available for sale in hard packs containing 20 cigarettes, such as black, silver, and others
When installing cigarette smoke detectors in bathrooms and non-communal living areas, property owners should choose devices that do not actively record audio or video to ensure privacy and comply with regulations regarding surveillance in sensitive areas