Dusty projector exterior and bracket which might be a health hazard

Dirty and choked/clogged air filter and air vent will result in overheating, reduce projector and the lamp lifespan

Dusty projector lens will result in blur projection

Blurry projector lamp will result in reduce projection brightness

Vacuumed, brushed and cleaned projector exterior and bracket for better air circulation and better studying environment

Cleaned air filter and air vent to prevent overheating  and to prolong parts and lamp lifespan

Cleaned projector lens for clearer projection

Cleaned projector lamp for brighter projection