Optoma EP721 User's Manual - Page 4

Don't

Page 4 highlights

Usage Notice Do:  Turn off the product before cleaning.  Use a soft cloth moistened with a mild detergent to clean the display housing.  Disconnect the power plug from the AC outlet if the product is not being used for a long period of time. Don't:  Do not block the ventilation slots and openings on the unit.  Do not use abrasive cleaners, waxes or solvents to clean the unit.  Do not use under the following conditions: - In extremely hot, cold or humid environments. - In areas susceptible to excessive dust and dirt. - Near any appliance that generates a strong magnetic field. - In direct sunlight. English 

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4
English
Usage Notice
Do:
Turn off the product before cleaning.
Use a soft cloth moistened with a mild detergent to clean the
display housing.
Disconnect the power plug from the AC outlet if the product
is not being used for a long period of time.
Don’t:
Do not block the ventilation slots and openings on the unit.
Do not use abrasive cleaners, waxes or solvents to clean the
unit.
Do not use under the following conditions:
- In extremely hot, cold or humid environments.
- In areas susceptible to excessive dust and dirt.
- Near any appliance that generates a strong magnetic field.
- In direct sunlight.