What safety precautions should I follow when setting up the air purifier?

Select a firm, level, and flat location. Ensure the front of the unit faces away from the closest wall or furniture. Ensure no grilles are blocked. Do not use the air purifier with an extension cord or power strip—locate it near the outlet. The air purifier must be used in its upright position, and foreign objects must not enter ventilation or exhaust openings.