Three smoke detectors are installed : 
in the Hall near the entrance to the big kitchen
in The Learning Centre 
and in the hallway adjacent to The Learning Centre.

The smoke detectors are Chubb photoelectric and are supposed to be less prone to nuisance alarms.

The alarms look like this.  

There are two buttons which can be reached from the floor with the stick we use to manage the hanging electric extension cords.

You will find this stick hanging on the wall next to the door into the Hall

You can't read the writing on the alarm from the floor so

the HUSH button (alarm silencer) has been coloured black and the TEST button next to it remains white.

The smoke alarm will automatically reset after 11 minutes

NOTE: dense smoke will override tha alarm silencer (Hush) and a continuous alarm will sound

Before silencing an alarm you must be certain a safe condition exists.