Most hotel bedrooms have en-suites containing bath and shower. Both of these can generate substantial amounts of steam which is known to trigger some smoke detectors and generate false alarms. This disruption can be extreme and result in an unnecessary full evacuation. Guests can be inconvenienced if sleeping, eating in the restaurant, relaxing in the bar, or in a meeting or conference. Not to mention the financial implications when guests refuse to pay or take their business elsewhere for the next visit.