How To Clean A Shop-Vac Filter In 4 Easy Steps - Cleaners Talk

Be honest, when was the last time you cleaned the filter of your Shop-Vac? Chances are, you’ll see it caked with dust and debris. If it’s super filthy, here’s how to clean a Shop-Vac filter the right way:

1. Tap the filter against a hard surface

The majority of Shop-Vac owners bang the filter of their Shop-Vac against a trash can. This method does work and will remove most of the debris, but will create a dust cloud. Instead, do this:

Don a pair of gloves and hold the filter in one hand. Place the filter inside a trash bag, with your entire arm inside. Use your other hand to close the trash bag around your arm. This will prevent the dust from escaping.

Next, tap the filter against a hard surface, like the walls of a large trash can to loosen the caked dust from the filter. Wait for one minute for the dust to settle inside the trash bag before opening it. Since you’ve “wrapped” the filter inside a trash bag, the dust is safely inside. All you have to do now is throw away the bag.

You’ll need a pair of work gloves and a trash bag for this method. It would also be best if you do the cleaning process outdoors, not indoors. The last thing you want is more dust to settle on your house’s surfaces.

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2. Use compressed air to remove more dust

With the majority of the caked dust and debris removed from the filter, it’s time to get rid of the embedded particles. To do this, you’ll need a low-pressure compressed air (no bigger than 40 PSI).

Spray the filter from the outside in using the low-pressure compressed air. Be careful not to rip the paper pleats or deform the pleated ridges permanently by using too much pressure.

Remember, spray the filter using compressed air outside the house. You don’t want dust flying all over the place. It’s also a good idea to don a pair of safety glasses to avoid stray particles from entering your eyes.

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3. Wash the filter with soapy water

If all you’ve done is tap the filter and use compressed air to remove the bulk of the dirt, you should be good to go. However, you can take the cleaning process to another level by washing the filter with soapy water.

Contrary to popular belief, most Shop-Vac filters can be washed and, if dried properly, reused. That said, there is a risk of destroying the filter when washing it with water because the pleats are made of paper. Check with the manufacturer of the Shop-Vac filter before you wash it using water.

To wash the Shop-Vac filter, fill a bucket with warm, soapy water and soak the filter for 10 minutes. A dishwashing liquid works best because it breaks down grease. Plunge the filter up and down several times to remove the remaining dust, dirt, and grease that is still hanging on.

After the soapy bath, rinse the Shop-Vac filter with a gentle rinse of fresh water on the sink to remove the soapy water. It’s important to remove the soapy residue because it contains most of the dirt.

4. Let the filter dry before reinstalling

The worst thing you can do to your Shop-Vac is to install the filter when it is not completely dry. Not only will you decrease the performance of your Shop-Vac, but you also encourage the growth of mold.

After washing the Shop-Vac filter, it is paramount to leave it to air dry for at least 24 to 48 hours before reinstalling. You can also leave the filter out in the sun to speed up the drying process.

Remember, a filter that is not completely dry will cause clogging because the dust your Shop-Vac collects will get mixed up with the moisture in the filter. Always let the filter completely dry before reinstalling.

Once you have washed the filter, it is not recommended to wash it again. Over time, the pleats will deform and the paper will become thinner. This will cause the Shop-Vac filter to become less effective. It is important to replace the filter after one wash otherwise, your Shop-Vac won’t be able to filter harmful particles.

Do this and you never have to wash the Shop-Vac filter again