CLEAN PROJECTOR filters to increase projector and LAMP LIFE

LCD, DLP and L-COS digital projectors produce large amounts of heat during their operation. This heat must be channeled away from the projector to prevent overheating and projector malfunction. It is especially important for the life of the projector lamp that this heat is removed effectively since projector overheating is the primary cause of projector lamp failure.

Why do you need to clean your projector filters?

To remove the build up of excess heat, digital projectors have one or more fans which force air around the projector’s operating parts. Since the air contains dust and other particles, the air must be filtered before it cools the projector to prevent the build up of dust on the projector’s moving parts. If this were to happen, the build up of dust would actually insulate the projector and keep heat inside the projector unit which could be very damaging, especially to the projector lamp. Also, dust can get on to the LCD panels and the projector lens, reducing the quality of the displayed image or interfering with the colour of the image projected.

As a consequence, all projectors have filters, which is inevitably where all the dust particles removed from the air end up. To ensure that these filters keep performing well, they must be maintained regularly. This is very important since damage to the projector caused by dirty filters may not be covered by the projector warranty.

How often should I clean my projector filters?

How often you clean your projector’s filters will depend on the environment in which the projector filters are working. An environment that has minimal dust will mean that the filters will not need to be cleaned as often as an environment with lots of dust, such as in a classroom where chalk dust can be a problem.

Generally, projector manuals recommend that cleaning the filters once every 100 to 300 hours is usually acceptable, but you should check your projector’s manual to find out what the recommended filter cleaning cycle specific to your projector is. Remember that you should also clean or replace your filters whenever you notice an excessive build up of dust.

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