Be sure to put pets out of the way in another room. Have a list of all your child's allergies and any medications currently being taken. Most importantly, stay calm so that you can help your child stay calm. Between each sleeping area and the remainder of the building. Where a sleeping area is served by a hallway, install the detector in the hall.
Smoke detectors are electronic devices that do require eventual replacement.
Studies have shown that they should be replaced after 7 to 10 years, depending on the location. My smoke detector goes off a lot. Second, the unit may need to be relocated. It could be too close to the kitchen, bathroom, heat register, or it could be defective and need to be replaced. Consult the installation instructions First clean the unit with a vacuum cleaner.