Abstract: A protection device, in particular a fire protection device on a motor vehicle. The device includes a fire fighting device having at least one container which is filled with an extinguishing agent and which can be paired with a body of a vehicle or an airplane or with a building wall or ceiling and comprising at least one outlet device which is to be closed by a temperature-controlled first valve, and/or the device includes at least one temperature-resistant tank which can be fluidically connected to an air conditioner, in which a negative pressure is present in order to receive a coolant of the air conditioner, and which is paired with at least one temperature-controlled second valve in order to open at least one flow channel for the coolant.