8 Step-by-Step Guilde How to Clean Vacuum Filter Properly

If your vacuum smells funny, isn’t picking up like it used to, or just seems sluggish—your vacuum filter is likely crying out for a clean. It’s one of the most forgotten parts of cleaning, yet one of the most important. A clogged vacuum filter not only affects suction power but also blows dust back into your home. In this guide, we’ll walk you through 8 ways to clean your vacuum filter properly, whether it’s HEPA, foam, or cartridge-style. No matter your model, these pro tips will help keep your vacuum running like new.

1. Turn Off & Unplug Your Vacuum

Safety first. Always unplug the vacuum before doing any maintenance. If it’s a cordless model, remove the battery or ensure it’s powered off completely. This prevents accidents and gives you full access to internal components.

2. Remove the Filter from the Housing

Check your vacuum’s manual to locate the filter. In most upright or canister models, it’s near the dustbin. Remove the dust container and pull the filter gently out. HEPA filters are often cartridge-shaped, while foam filters can be found wrapped around motor areas. If unsure, refer to Shark’s UK Filter Guide.

3. Tap Out Loose Dust

Over a bin or outside, gently tap the filter to shake off loose debris. You might be surprised at how much dust comes off even before washing. Use a soft brush to dislodge dirt in crevices. Wear a mask if you have allergies or asthma.

4. Rinse Foam or Washable Filters Under Warm Water

Foam or sponge filters can usually be rinsed under warm (not hot) water. Gently squeeze—don’t wring—the filter until water runs clear. Do not use soap unless your manufacturer recommends it. Dyson recommends water-only cleaning for most of their filters (Dyson Maintenance Guide).

5. Let Filters Air-Dry for 24 Hours

This step is crucial. Never reinstall a wet filter—it can damage the vacuum and cause mould buildup. Lay the filter flat on a clean towel in a warm, well-ventilated area. Do not use hairdryers or heaters. Allow a full 24 hours to ensure it’s completely dry.

6. HEPA Filters: Replace or Clean?

HEPA filters are trickier. Some are washable, others are not. If your HEPA filter is marked ‘non-washable,’ replace it every 6–12 months depending on use. For washable ones, follow the same rinse-and-dry steps above. Refer to The Spruce’s guide for brand-specific tips.

7. Clean the Filter Housing & Surrounding Area

Use a damp cloth or vacuum hose to clean out the area where the filter sits. Dust and hair often accumulate here too. This helps prevent future clogs and keeps airflow smooth. Don’t forget the dustbin and seal rims too.

8. Reassemble & Run a Test

Once the filter is dry, reinstall it in reverse order. Make sure everything clicks or fits securely. Turn on your vacuum and do a quick test on a hard floor or rug. Notice the difference in suction and air quality—like new!

Bonus Tips for Different Models

• Bagless vacuums: Filters need cleaning every 1–3 months.
• Bagged vacuums: Filters can go longer, but bags must be replaced regularly.
• Pet households: Check filters more often due to hair and dander.

Frequently Asked Questions

How often should I clean my vacuum filter?

Every 1–3 months for most homes. More frequently for pet owners or allergy sufferers.

Can I use soap to clean a vacuum filter?

Check your manual. Most filters should be rinsed with plain water only unless stated otherwise.

What happens if I don’t clean the filter?

You’ll lose suction, spread dust, and overwork your vacuum motor. Regular filter cleaning keeps your machine efficient and extends its life.

Can professionals help with vacuum maintenance?

While most filter cleaning is DIY, Glohus Deep Cleaning can assist with vacuum maintenance during scheduled home cleans, especially in post-build or tenancy transitions.

Want a Fresh-Feeling Home Again?

From vacuum filters to floors, our team at Glohus End of Tenancy Cleaning ensures your entire space gets the attention it deserves. Book your expert clean in Hertfordshire and breathe easier knowing every detail is covered.

External References:
- Shark Clean UK – Filter Cleaning
- Dyson UK – Filter Maintenance
- The Spruce – Vacuum Filter Cleaning Guide