What percentage of households in the U.S. are estimated to have nonoperational smoke detectors?

The correct answer reflects a significant concern regarding household safety in the United States. Research and surveys conducted by various fire safety organizations have identified that a considerable percentage of households have smoke detectors that are nonoperational, either due to dead batteries, being turned off, or lack of maintenance. The estimate of 20% aligns with findings showing that many people may install smoke detectors without properly maintaining them, which diminishes their effectiveness during a fire emergency. This statistic is particularly alarming given that smoke detectors are crucial for early fire detection and can significantly reduce fire-related injuries and fatalities. Maintaining operational smoke detectors is essential for ensuring household safety and reflects the importance of ongoing education and awareness programs about fire safety measures.