How to Clean Air Purifier Filter?

Cleaning of air purifier filter is very important to keep the purifier running with optimum performance. If we clean the air purifier filter regularly then it will help to keep your indoor air fresh and clean, and you will be free from diseases and allergies.

If you are looking to buy any type of air purifier, then you will see many models with different types of filters.

It is important to know how often you need to clean the air purifier filter, how to clean it, and which method is the best for cleaning the air purifier filter.

These filters build up with dust and need to be cleaned. In this blog, we are looking at how to clean air purifier filters safely and effectively.

Steps to Clean Air Purifier Filter

  • Check your product manual to see if you can clean your filter. Before attempting to wash a HEPA filter, check both the product itself and the manufacturer’s website for information on whether or not it can be cleaned. If this information is unavailable, search for “cleanable HEPA filters” online. Those that are typically used in air purifiers and vacuum cleaners can be washed depending on how dirty they get.

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  • Disassemble your appliance outside to prevent dirt and debris from spreading into your home. The larger accessories can be cumbersome and hold a lot of dust and grime that gets released into the house might mean a lot of cleanups for you. You don’t want to attempt to remove them inside as this could make a bigger mess than necessary or take longer than you have time for. Instead, take your appliances outside or to the garage (vacuum cleaner) in order to remove their dirtiest components. A garden hose would definitely come in handy if any dust pops out while you’re doing this! If it’s easier for you, though, you don’t even necessarily need the hose – just make sure you’re near water so that any excess debris can be rinsed off easily enough. Smaller filters are easy to rinse inside with some water, but check the manufacturer’s guidance so there’s no risk of causing damage by accident.
  • Remove any filters from your appliance. Make sure your air purifier or vacuum cleaner is turned off and unplugged. Remove the canister or compartment that has the filter, then slide the filter out of the appliance. Check your product guide if you’re not sure how to access the HEPA filter properly as some units may require disassembling/re-assembling pieces to remove it. A HEPA (High Efficiency Particulate Air) filter will usually be in an area for filtering the air and if there isn’t one present, then you need to find a replacement for it immediately! Never operate an air purifier or vacuum cleaner without a filter installed in appropriately and make sure that all filters are clean before using your cleaner again.
  • Tap the garbage disposal filter over a trash can to loosen debris. If the filter gets filled with food, or if you need to thoroughly clean the filter, tap the filter gently on a trash container (not an actual garbage can!). This will knock off any large bits of any loose items and will loosen any caked-on dirt you might be dealing with. If necessary, grab a rubber glove to handle the excess waste.
  • First, you need to wash the filter. Then rinse it with water. Be gentle or use medium pressure on parts for flat filters. Check your product guide for the best water temperature for that specific filter. Flat-bottomed cylinders require only a spray from their tops and surrounding areas should be rinsed off while cylindrical filters, which reside inside cylindrical vacuum cleaners and are removed in a vertical position to be rinsed and replaced vertically afterward, must not get wet inside the cylinder.
  • When drying your filter, it’s important to make sure that you are not bypassing the recommended air-drying technique. Installing a wet filter can cause gaskets inside the unit to compress improperly and thereby reducing airflow. Avoid putting your filter in a clothes dryer, using a blower dryer or any method besides natural air drying.

Use Vacuum Cleaner for Non-washable Filters

  • Remove the filter from your air purifier. Many air purifiers use non-washable HEPA filters, which means they can last anywhere between 8 and 12 months. Turn off and unplug your appliance before accessing the filter. Check your product manual for specific instructions on how to access your appliance’s filter.

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  • Ensure your machine uses high-quality filters. High-Efficiency Particulate Arrestance (HEPA) filters need to be professionally cleaned after around 6 months of usage, or sooner if the filter becomes clogged with dust and other allergens. In addition to this, it’s a good idea to regularly wash all other filters: at least one foam or activated charcoal filter typically accompanies a non-washable HEPA filter.

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  • Use a vacuum cleaner nozzle or brush attachment to clean your non-washable HEPA filter. For added control, you can use a vacuum cleaner accessory with a long hose. Pass the vacuum tool over the HEPA filter surface from one side to the other until all surface debris is removed.

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  • Reassemble your appliance, be sure not to forget any filter pieces. You can clean the HEPA filter and let it dry completely before putting all the pieces back together in your air purifier again. Make sure you reset the electronic reminder if it has one after cleaning this filter as well.

FAQs Related How to Clean Air Purifier Filter?

A HEPA filter can be reused again and again if handled correctly, but the user must take care to clean it correctly. To clean a permanent HEPA filter, you might use a vacuum cleaner to get rid of dust caught in the filter’s fibers.

However, you will want to be gentle with this type of filter as too much force could damage its fibrous structure. Washable HEPA filters come already washed – so they won’t need additional washing. For this reason, they are also called “dry” filters.

Using air filters is a great way to reduce the number of dust particles circulating around your home or office. This can be especially important for those with respiratory conditions such as asthma or allergies.

However, it’s very possible to accidentally damage your filter, leading to a less efficient mechanism for sucking up all of those tiny specks of dirt and dust that so badly need to be removed from the air around you.

There are two types of filters that need to be cleaned – what you can think of like the exhaust filter and the air filter.

Ultimately, both coils have to be vacuumed every 2- or 4 weeks, but luckily it’s pretty simple – all you need is an attachment to make sure that your vacuum hose gets into those small nooks.


A lot of folks do not realize the need of cleaning a purifier filter. Thus, when they are very dirty, they end up buying a new purifier.

To save your money and make sure that your purifier system is working for a long, you should know when to clean the purifier filter.

It’s common for a lot of air purifiers to get dirty after a few months of usage. Even if your purifier comes with a reminder to clean its filter, a lot of people leave it for a long time before cleaning it.

Air purifiers remove dust, odor, pollutants, and mold from the air. Regular maintenance is needed in order to keep the device free from dust and allergens.

If you take good care of your purifier, you should be able to get up to 6 months or more of high performance from it.

Here we had discussed the steps needed to clean the air purifier filter. I hope after reading this article you will understand how to clean air purifier filters.

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