 This makes them suitable in clean rooms; areas which contain goods easily damaged by fire, such as tobacco, electronic rooms and highly flammable liquid and gases.Often, normal point detectors will recognise the danger too late, as smoke often does not reach the ceiling quickly enough for a fire to be detected in a timely fashion.As they can be easily hidden, pipe networks are suitable in environments where point detectors can be considered aesthetically displeasing, such as offices, apartments and hotel rooms.