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How to Clean a Vax Blade 4 Filter

Written by James Hall |

How to clean vax blade 4 filter

The Vax Blade 4 has a washable filter that should be regularly cleaned. Read on to find out how to wash this filter and why doing so is important.

The Vax Blade 4 is a mid-range cordless vacuum cleaner that provides excellent value for money. However, it’s essential to keep the filters clean, otherwise the vacuum’s airflow and suction power will suffer.

In this article, we’ll show you exactly how to clean the Vax Blade 4’s filters. We’ll also discuss why cleaning the filter is such a key maintenance task.

Note: This article is specifically for the Vax ONEPWR Blade 4. The instructions may be similar for other Vax vacuum cleaners, but you should consult your manual.

Why Should You Clean The Vax 4’s Filters?

The filter is an essential part of any vacuum cleaner. Without a filter, small dust particles and other allergens could pass through the vacuum and back into your home. This reduces your home’s air quality and is bad news for people with allergies.

Like most mid-range cordless vacuum cleaners, the Vax doesn’t have a HEPA filter (which is the most effective type of domestic vacuum filter). Instead, it only comes with a basic filter, although this still plays an important role in maintaining your home’s air quality.

There are several reasons why you should clean your Vax vacuum filter. Here are two of the most important:

  • Improved suction power. As a filter starts to become more clogged with dirt, it stops air from flowing freely through the vacuum cleaner. This can reduce the effective suction power of the vacuum and make it less effective at picking up dirt.
  • Improved longevity. A clogged filter forces a vacuum’s motor to work harder to pickup dirt and other debris. This can lead to overheating and even reduce the lifespan of the motor. By cleaning the filter, you relieve unnecessary pressure on the motor and potentially make your vacuum last longer.

The good news is that the Vax ONEPWR Blade 4 comes with a washable filter. This means you can use warm water to clean it, rather than needing to buy a new filter when it becomes clogged.

We recommend cleaning your Vax filter at least once per month. If you vacuum more often than average or have lots of pets or dirty floors, then you may need to clean it more regularly.

The longer you leave cleaning the filter, the worse the clogging will become. Eventually, a filter can become so clogged that it’s impossible to clean, which means you’ll need to purchase a replacement.

How To Clean The Vax Blade 4 Filter

Step 1: Remove And Empty The Dirt Container

Before you start, Vax recommends removing the battery before you carry out any maintenance on the Blade 4.

Next, use the dirt canister latch to release and remove it from the main body of the vacuum cleaner. You’ll need to tilt the bin to pull it away from the handheld portion of the vacuum.

With the canister removed, use the dirt release button to empty it into an external bin. Make sure you close the trap door after emptying it.

Step 2: Remove The Filter

To remove the filter, you’ll need to open the lid on the dirt canister. You can do this by using a small tab on the side of the lid.

Once the lid has been opened, you can lift out the entire filter housing. Tap off loose dust on the filter housing into an external bin, then use the tab to remove the filter itself from the top of the housing.

Step 3: Clean The Filter

Now that the filter has been removed, you should tap loose debris into the bin.

Once you’ve removed any loose dirt and dust, wash the filter under a warm tap until the water runs clear. You probably won’t be able to get rid of all the staining, but aim to get rid of the majority of grime and other debris that’s built up on the filter.

Do not use any detergents, hot water, or other cleaning products when washing the filter. These can permanently damage the filter.

Step 4: Allow The Filter To Dry

It’s important to allow the filter to dry completely before you re-insert it into the vacuum cleaner. A wet or damp filter is susceptible to mould and could even damage the vacuum’s motor.

Vax recommends waiting at least 24 hours for the filter to dry before using it again. Make sure that the filter is somewhere warm and with plenty of airflow to speed up the drying process.

Step 5: Re-Insert The Filter

Once the filter is dry, remember to re-insert it into the filter housing. You can then replace the filter housing into the dust canister and re-attach the canister to the vacuum cleaner.

Your vacuum is now ready to use again! Hopefully, cleaning the filter should improve its performance and extend the Vax’s lifespan.


The Vax Blade 4 filter is straightforward to access and clean. It’s important to perform this maintenance task at least once a month, as this helps to keep your Vax running at its maximum efficiency.

Do you have any questions about how to clean the Vax Blade 4 filter? Or is there something else you would like to know about this vacuum cleaner? Please let us know in the comments section below.

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