What percentage of smoke detectors in homes are non-operational?

The correct answer is 20%, which reflects the significant issue of non-operational smoke detectors in residential settings. Research indicates that approximately one in five smoke detectors in homes do not function properly, largely due to reasons such as dead batteries, improper installation, or the units being outdated. This statistic highlights the crucial need for regular maintenance checks on smoke detectors to ensure they are in working condition. Educating homeowners about the importance of testing their smoke detectors monthly and replacing batteries at least once a year can enhance safety and potentially save lives in the event of a fire. Understanding this percentage underscores the urgency of advocacy for fire safety measures in residential environments.