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How to Clean a Vacuum Cleaner: 8 Simple Steps

Updated
When was the last time you deep cleaned your vacuum cleaner?

Let’s be honest: vacuum cleaners do the dirty work, literally. But if you never clean the cleaner, you are just pushing dust around your house. A clogged, dirty vacuum loses suction power, overheats, and can even blow allergens back into the air you breathe.

Dumping the dust bin is a good start, but it isn’t enough. To keep your machine running like new, you need to tackle the filters, the hose, and that tangled mess on the beater bar.

We are here to walk you through the entire process. Follow this guide on how to clean a vacuum cleaner, and you will restore that “out-of-the-box” suction power in no time.

Key Takeaways

  • Clean your vacuum regularly to improve suction power and air quality.
  • Deep clean the entire unit every 12 to 18 months; clean filters every few uses.
  • Identify if your filters are washable or replaceable before wetting them.
  • Avoid sucking up baking soda or fine construction dust, as these destroy motors.


Why You Should Clean Your Vacuum Cleaner

Most dirt ends up in the canister or bag, but fine dust and allergens cling to the internal components. Over time, this buildup restricts airflow. When airflow drops, your vacuum struggles to pick up debris, forcing you to work harder for the same result.

Cleaning your vacuum eliminates hidden bacteria and mold spores. If you have ever noticed a stale, musty smell while vacuuming, that is the scent of bacteria blowing back into your room.

Hygiene is critical here. If you use the vacuum to clean up after a sick family member, germs can linger inside the machine (1). A thorough cleaning prevents those germs from recirculating.

Finally, maintenance saves money. Many people throw out their vacuum thinking it’s broken, when it actually just needs a deep clean. A hair-wrapped brush roll or a clogged filter puts immense strain on the motor. By keeping these parts clean, you extend the lifespan of your appliance significantly.

How Often Should You Clean Your Vacuum?

Check your owner’s manual for model-specific schedules, but here are some general rules of thumb to keep your machine humming.

Regular Maintenance:

  • Bagless Canisters: Empty after every use. Do not let debris pass the “Max Fill” line.
  • Bagged Models: Replace the bag when it is two-thirds full.
  • Filters: Clean or shake out every 5 to 7 uses.

Deep Cleaning:
Plan to take the vacuum apart for a wash-down every 12 months. If you have pets or a large home, increase this to every 6 months.

Signs You Need To Clean

Is your vacuum losing suction? Is it making a high-pitched whining noise? Does it smell like wet dog or burning rubber? These are immediate signs you need to stop and clean it.

How to Clean Your Vacuum Cleaner

While designs vary, most vacuums have the same core parts: a canister (or bag), filters, a hose, and a motorized head. Follow this step-by-step breakdown to clean them safely.

  • Time: 45 minutes
  • Difficulty: Intermediate

What You’ll Need

  • Dish soap
  • Warm water
  • Microfiber cloths
  • Scissors or seam ripper
  • Soft cleaning brush (or old toothbrush)
  • Rubbing alcohol (optional)
  • Can of compressed air (optional)
  • Broom handle or wire hanger (for hoses)
  • Garbage bag

Quick Tip

Take a photo of your vacuum before you dismantle it. This gives you a reference point for reassembling the parts later.

1. Dismantle the Vacuum

Make sure the unit is unplugged. Remove the canister or dust bag first. Detach the hose, remove the filters, and unclip any cleaning heads or attachments. You want to strip the vacuum down to the base unit.

2. Handle the Filters Correctly

This is the most critical step. You must identify what kind of filter you have before touching water.

Washable Filters (Foam or Mesh):
Tap them against the side of a trash can to knock loose dust. Rinse them under cool running water until the water runs clear. You can use a tiny drop of dish soap if they are greasy. Squeeze out excess water gently and let them air dry for at least 24 hours.

Non-Washable Filters (Paper or HEPA):
Do not get these wet. Water can ruin the fibers and mold the paper. Instead, take them outside and tap them against a hard surface to dislodge dust. If you have compressed air, blow the dust out from the clean side through to the dirty side.

The Mold Warning

Never put a wet filter back into a vacuum. The dark, enclosed space will turn damp filters into a mold factory instantly. Ensure they are bone dry.

3. Clean the Canister or Bag Compartment

For Bagless Models:
Empty the trash. Most canisters can be fully submerged in warm, soapy water. Use a bottle brush or sponge to scrub the inside. Rinse it well and let it dry completely.

For Bagged Models:
You cannot wash the paper bag; just throw it away. However, the compartment where the bag sits often gets dusty. Use a slightly damp microfiber cloth to wipe out this inner chamber.

4. Clear the Hose

The hose is a common hiding spot for clogs. Detach it and look through it; if you can’t see light at the other end, it is blocked.

Take a broom handle or a straightened wire hanger and gently push it through the hose to dislodge any socks or debris clumps stuck inside.

If the hose is plastic (and contains no electrical wiring), you can soak it in the bathtub with warm soapy water to clean the interior. Hang it over a shower rod to drain and dry thoroughly.

5. Clean the Beater Bar

Flip the vacuum head over. You will likely see hair, string, and floss wrapped tight around the brush roll. This friction burns out motors and snaps belts.

Use scissors or a seam ripper to cut through the hair along the groove of the brush roll. Pull the debris out with your fingers.

If your model allows it, unlock the plate and remove the brush roll entirely. This lets you clean the bearings on the ends, where hair often gets tangled and causes friction. Wipe down the housing with rubbing alcohol on a cotton pad to sanitize it.

6. Wash the Attachments

Hard plastic attachments like the crevice tool and upholstery tool can be washed in warm soapy water. Scrub them with an old toothbrush to remove built-up grime. Rinse and dry them alongside the canister.

7. Wipe the Exterior

Your vacuum travels through every room, bumping into furniture and walls. It picks up scuffs and germs. Wipe the entire exterior with a damp cloth and a little disinfecting alcohol or mild cleaner.

8. Reassemble

Once every single part is completely dry, put the machine back together. Install a fresh bag or the clean canister, pop the filters back in, and reattach the hose.

Common Vacuum Mistakes to Avoid

Protect your investment by avoiding these common errors:

  • Ignoring the Cord: Never yank the plug out by the cord. This damages the internal wiring. Also, stop pulling when you see the “yellow” tape on the cord; pulling past the red tape can snap the retraction mechanism.
  • Vacuuming Wet Messes: Unless you have a specific “Wet/Dry” shop vac, never vacuum water. It mixes with dust to create cement-like clogs and can electrocute you.
  • Overfilling: Bags and canisters need airflow to work. If you let them get 100% full, the motor has to work double-time to pull air through the solid mass of dirt.

How to Fix a Smelly Vacuum

If your vacuum smells like feet or burning dust, a deep clean is usually the cure. However, you can take extra steps to keep it fresh.

  • Essential Oils: Put a few drops of lemon or peppermint essential oil on the filter (if washable) or on a cotton ball placed inside the dust bag.
  • Scent Beads: Use commercial vacuum scent beads in the bag.
  • Cinnamon: Sprinkle a little cinnamon powder on the floor and vacuum it up for a natural spice scent.

Note on Baking Soda: We do not recommend using baking soda. The particles are so fine that they can pass through motor filters, causing electrical shorts, or clog HEPA filters instantly.

FAQs

How Do You Disinfect a Vacuum Cleaner?

You can disinfect the non-electrical parts of a vacuum using a mix of white vinegar and water or rubbing alcohol. Dampen a cloth with the solution and wipe down the canister, the exterior, and the underside of the floor head. Never spray liquid directly into the motor or electrical vents.

How Often Should You Change Your Vacuum Filter?

For residential use, replace HEPA or paper filters every 6 to 12 months. Washable foam filters can last longer but should be replaced every 2 to 3 years as the material degrades. If the filter has a hole or smells bad even after washing, replace it immediately.

Can I Put Baking Soda in My Vacuum?

No, you should avoid putting baking soda in your vacuum. While it is a great deodorizer, the particles are microscopic and abrasive. They can leak through filters to damage the motor bearings or clog high-efficiency filters, killing suction power.

Why Does My Vacuum Keep Getting Clogged?

Frequent clogging usually means you are vacuuming debris that is too large (like paper scraps or socks) or your filters are dirty. If the filters are blocked, the air has nowhere to go, so the dirt stops moving halfway up the hose. Clean your filters to restore airflow.

Can I Wash My Vacuum Hose?

Yes, you can wash most vacuum hoses, provided they are made of plastic and do not contain electrical wiring. Some hoses have power buttons on the handle or pins that connect to a power nozzle; do not submerge these. Standard plastic hoses can be soaked in warm soapy water.


Conclusion

A clean vacuum is the difference between a house that looks clean and a house that actually is clean. By taking forty-five minutes to wash the filters, cut the hair off the brush roll, and wipe down the canister, you protect the motor and ensure your home stays allergen-free.

Make this a yearly ritual. Your floors (and your wallet) will thank you for extending the life of your machine.

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About the Author

Amy Anthony

Amy Anthony is a cleaning expert, author, and contributing writer for Oh So Spotless, a leading online resource for all things related to cleaning, organizing, and maintaining a spotless home. With over 15 years of experience in the cleaning industry, Amy has gained extensive knowledge and expertise that have made her a trusted authority on best practices, efficient techniques, and innovative cleaning solutions.