CRAC is the Acronym for Computer Room Air Conditioner
smoke detictors.
Tone room is an application used on a mobile device to purchase ringtones
The noise cancelling room device is very effective in reducing unwanted sounds in a room by using technology to actively cancel out noise, creating a quieter environment.
humidifyer
An electric device for cooling a room.
No secret room has been found.
A space heater.
An abatjour is a device such as a skylight which directs light into a room.
Each room is hexagonal.
A stability room is a device used to mantain constant (and pre - defined) conditions of humidity and temperature.
I do not know of any device's, but if you have two DS's then you can trade in the Union Room.