LG CineBeam Laser 4K HU85LS Manuel Du Propriétaire page 26

How to clean the lens
– Clean the lens if any dust or smudge appears on the surface of the lens.
– Clean the surface of the lens with an air sprayer or a soft, dry cloth.
– To remove dust or stains on the lens, use a compressed air duster, cotton
swab, or soft cloth to gently wipe the lens.
– Never clean the lens when the projector is operating or immediately after the
projector is turned off.
– Do not use any detergents, automotive or industrial polishes, abrasives,
waxes, benzenes, alcohols, water, etc. on the lens, as they will damage the
projector.
When moving the projector, be sure to turn off the power switch and
disconnect the power plug, antenna cable and the connection cord between
the devices.
• A failure to do so may cause damage to the projector or the cord, resulting in
a fire or electric shock.
Do not block the light from the projector lens with a person, book or other
objects.
• If the light from the projector shines on an object for a long time, it can cause
fire due to the heat of such light. Also, the reflected light can heat the lens
and cause damage to the projector.
This label is attached to the bottom of the product and language may differ.
26
Risk Group 2
CAUTION Possibly hazardous optical radiation
emitted from this product. Do not stare at
operating lamp. May be harmful to the eye.