Canon WUX500ST Quick Start Manual page 22

Before Installation
■ When Using Mounted on the Ceiling
When the projector is used mounted on
the ceiling or installed in a high location,
it is necessary to periodically clean the
air intake and exhaust vents, and the area
around the air filter. Dust that
accumulates in intake or exhaust vents
may impair ventilation, raising the
temperature inside and posing a risk of
damage or fire. Use a vacuum cleaner or
similar means to remove dust from the
intake vent and exhaust vent.
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