The bulbs in traditional lamp projectors often reach temperatures as high as 800~900°C while operating, meaning heat dissipation is especially important. But accumulated dust on the vents can disrupt heat dissipation, reducing speed and performance and occasionally even forcing automatic shutdowns due to heat surges.

Even in projectors that employ a dust filter to safeguard against heat-related issues, finer dust can still accumulate on the colour wheel, leading to degraded images and reduced brightness.

Whether it’s overheating, crashing, or colour degradation, failing projectors can’t be fixed by teachers or students. Regardless of whether a school relies upon on-site IT personnel or outsources to a contractor, increased repair costs lead to higher school budgets.

The fact of the matter is that education projectors need to be dust-resistant. In recent years, BenQ has been actively investing in and developing dust-resistant technology for use in its Education Laser Projectors. In addition to using convex colour wheel sensors that prevent dust buildup and prolong colour performance, BenQ’s Education Laser Projectors also feature comprehensive Dust Guard Technology. The sensor in Education Laser Projectors uses a magnetic system for timing, making it impervious to dust accumulation. BenQ Education Laser Projectors also come equipped with IP5X-certified optical engines that are designed to keep out hair, dust, and fibres. Meanwhile, the Dust Guard Pro model wards off PM2.5 while still maintaining free air flow to ensure safe operating temperatures. The Dust Guard Pro model is also equipped with a sealed optical engine to fully protect chips, colour wheels, and other optical components. By preventing colour wheel failure, BenQ Education Laser Projectors can avoid common projector issues such as spotty projection and colour degradation.