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Projector Filter Replacement: 3 Good Filters For You

Projectors come with air filters that serve an important purpose. They stop dust and other particles from getting to the projector lens through the vents.

These filters accumulate dust over time. It is important that they be replaced with new ones. Alternatively, you can clean your projector’s air filter and reuse it.

Have you had your projector give off ‘high temperature’ signals in the middle of a presentation? It is the most embarrassing thing.

Here’s some good news: you can replace your projector filter by yourself and avoid this.

Replacing a projector filter is an easy process once you get the hang of it. You just need to have a clean replacement ready.

In this article, you’ll learn the processes in projector filter replacement. We have also provided a few air filter suggestions for you.

How to Replace Your Projector Filter

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Once in a while, your projector may display a message showing the need to replace the filter. Make sure the projector is cool before replacing any parts.

The filter is located near the vent which is usually at the back of the projector.

Sometimes, it may be under the projector – behind the panel. It could also be on top of the projector, close to the lamp.

Regardless of where it is, the process is the same. Here’s the process of projector filter replacement:

Step 1: Remove the power cord and locate the projector vent.

Step 2: Place the projector on a soft cloth to protect it from scratches.

Step 3: Locate the plate that covers the air filter. Loosen the screws that hold the plate to the projector with a screwdriver. Keep the plate and the screws safely.

If your projector’s filter cover isn’t screwed in, just go ahead and unlatch it.

Step 4: Take out the filter from the projector gently. Don’t allow dust on it to fall back into the projector.

Some filters are attached to the cover. They’re held down by side tabs. In this case, simply slide the old one out.

Step 5: Carefully press the new filter into the now empty space. Take care not to touch the fan.

Step 6: Screw the plate back into place over the filter. Place the projector back on its perch.

Step 7: Plug in the power cord.

Setting a Reminder

a hand writing reminder

Some projectors let you set a reminder to clean your air filter. Here’s how you can find this setting:

  • Go to On Screen Menu (OSD) on the remote control.
  • Using the arrow buttons, navigate to Options.
  • You may see a Filter Remind or Cleaning Remind option. This is where you can set a duration for reminders.

Top 3 Projector Filters for You

Some projectors come with unique filters. Getting the exact type you need for a replacement may be tasking.

In this situation, it is best to use one of several air filter alternatives available in stores. These air filters are handy and efficient.

Most of the time, they come in larger sizes than are required. This is good. You can cut them to the size and shape you want.

Here are three of the best projector filters:

Universal Air Filter

Universal Air Filter for NEC/3M/Epson Projectors (1012cm)
  • Universal Air Filter for NEC/3M/Epson Projectors, it is easy to cut to your projector air filter...

The Universal Air Filter is manufactured by CooLux. It is best for NEC, 3M, and Epson projectors.

Interestingly, it works well for many other projectors. It is especially good for old projectors that generate a lot of heat.

The Universal Air filter is a ‘cut to fit’ air filter. You need to cut it carefully. Keep the edges trim so that it fits properly behind the cover.

It is 0.4″ thick. It is resistant to high levels of heat generated by NEC projectors. It comes in a 3.9″ × 3.9″ square.

What we like about it:

  • It is a prime shipping item on Amazon
  • It can be cut to fit different projector types
  • Customer reviews describe it as highly heat resistant and durable.

What we don’t like:

  • There’s no mention of warranty from the manufacturers.


Pura PC Computer Air Filter

Pura PC Computer Air Filter - Polyurethane Foam Filter
  • 1 sq ft 60 pores per inch (ppi) polyurethane foam
  • Can be cut to fit any shape(s) and size intake(s).
  • Different mounting options of inside or outside the computer case to retain form and function.

This Air filter is manufactured by Pura PC. The air filter stops dust from entering your PC without limiting the flow of air.

It can be used with many projectors once cut to the correct size.

It is a washable air filter. This means that when dust particles accumulate, you can wash it and reuse it.

It is a 1 sq ft polyurethane foam. It contains 60 pores per inch that allow good airflow. It collects all kinds of particles: dust, pollen, lint and so on.

What we like about it:

  • It can be cut and used with projectors, PCs and even vacuum cleaners.
  • The air filter is made of washable material and can be reused.
  • Product Warranty

What we don’t like about it:

  • We’re satisfied with this product. Just remember to clean it once dust accumulates.


Frost King Air Conditioner Filters

Frost King Air Conditioner Filters, 15 in. x24 in. x3/16 in. , Open Cell Foam
  • Manufacturer: THERMWELL
  • Manufacturer Part Number: F1524
  • Frost King Washable Foam Air Filter For Air Conditioners, 24X15X1/4 In. - 471002

This air filter is manufactured by Thermwell. It is made especially for air conditioners.

However, like the other air filters listed, it can work for other devices too.

The Frost King filter helps keep dust out of your projector. It is 0.25″ thick and 15 × 24″ in length.

It has a frameless design and can be cut into your desired size. It is made of polyurethane.

The filter is washable and reusable. It can be used for up to 3 years.

What we like about it:

  • The frameless design which makes it easy to manipulate.
  • The large size means you can cut up to two filters for small projectors.
  • It is long lasting.



It is best to clean your air filter once a month. This is nearly impossible because of our busy schedules. The good thing is that you can get by on cleaning it just 2 – 3 times a year.

You may have heard that you should not wash an air filter. This is true for most. However, there are sponge-like filters that can be washed.

If you wash an air filter, make sure it is completely dry before you put it back into your projector. For projector filter replacement, I recommend the Universal Air Filter.

Last update on 2022-08-19 / Affiliate links / Images from Amazon Product Advertising API.

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