few times a year, use a vacuum cleaner (hand-held or full-sized
with extension tube) to gently remove dust from the slots cut into
the unit's cover.
Dust in those slots could slow the entry of smoke and interfere
with early detection of a fire.
decorate any part of a smoke alarm
(including the outer cover) with paint, stickers, hanging objects,
etc. This can impair function.
detectors have a reliable service life of ten years.
After ten years, replace the smoke detector with a new one.
you move into a home with existing smoke detectors of an unknown
look at the manufacturer's label on the back of the device. It might
display a date of manufacture and you can use that date to calculate
the device's age. If you cannot find a date of manufacture, replace
the unit with a new one as soon as possible.
ear protection when you test the smoke alarm. It's very loud and you
will be right next to it when you're testing it.
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