How to Clean a Vacuum Cleaner | Restore Full Suction Power

A vacuum that loses suction or smells stale usually isn’t broken—it’s just clogged with the debris it was built to collect. The fix takes about 15 minutes and requires nothing fancier than a pair of scissors, a soft cloth, and your owner’s manual for one crucial check: which parts are actually washable. Here is the step-by-step that works across bagged, bagless, stick, and canister vacuums.

Step-by-Step: Clean Every Part That Collects Dirt

Every cleaning session starts the same way. Unplug a corded vacuum completely. For cordless models, remove the battery only if the manufacturer instructs it—otherwise leave it in place but power the unit off.

Empty the Dustbin or Replace the Bag

Bagless vacuums should be emptied after every use or as soon as the debris reaches the max line. Dump the bin into a trash can and wipe the container with a dry or slightly damp cloth—never submerge it in water unless the manual explicitly says it’s washable. For bagged vacuums, replace the bag before it gets more than two-thirds full. A stuffed bag chokes airflow fast, and the suction drop is immediate.

Clean the Filter—This Is Where Most People Go Wrong

Filters are the most commonly mis-cleaned component. Disposable foam or pleated filters must be replaced, never washed. Washable filters should be rinsed under cool tap water only if the manual confirms they are washable—no soap unless the manufacturer specifically allows it. Squeeze the filter gently after rinsing (do not wring or twist) and let it air-dry for a full 24 hours before reinstalling. Running a damp filter back into the machine invites mold and motor damage. The general cadence is to clean or replace filters every 1 to 3 months, but a HEPA or fine-particle filter may require more frequent attention in dusty homes.

Clear Hair and String From the Brush Roll

The brush roll is the hair magnet. Turn the vacuum over, remove the brush cover if it lifts off, and use scissors or the seam-ripper tool included with some models to cut through wrapped strands. Cut lengthwise along the bristle row and pull the freed hair away. This should happen every few uses for pet-owner households or monthly for lighter use, because wrapped hair directly reduces airflow and brush-roll rotation. Skip this step and suction drops regardless of how clean the filter is.

Check for Blockages in the Hose and Path

Suction loss that persists after a clean filter and brush roll almost always means a clog. Detach the hose, wand, and floorhead and look through each section toward a bright light. A broom handle or a flexible brush can push the blockage out—never use a sharp tool like a coat hanger or screwdriver, which can puncture the hose wall. Check the transfer point where the floorhead meets the wand and the base of the dustbin, because small objects like a coin or a hairpin often lodge there.

Once the clog is cleared, take a moment to step back and assess whether your current vacuum is the right tool for the job. If the brush roll is shedding bristles, the hose keeps kinking, or the suction has never truly recovered, it may be time to look at a more powerful option. Our roundup of the best cleaning upright vacuums covers models that handle hair tangles and deep-pile carpets without the constant maintenance.

Wipe Down the Exterior and Attachments

With the machine unplugged and the filter drying elsewhere, use a soft cloth dampened with mild soap and warm water on the exterior shell, the dustbin exterior, and any removable attachments. Do not get moisture near electrical contacts, motor vents, or the power switch. Small gap brushes or a microfiber cloth work best around the crevice tool opening. Let everything dry completely before you reassemble—moisture trapped under the dustbin seal or inside the hose is the most common cause of musty odors from an otherwise clean machine.

Common Mistakes That Undo the Work

Three errors cancel out a thorough cleaning. Reassembling damp parts is the fastest path to mildew and motor failure. Using soap on a filter that should only be rinsed is the second. The third is letting the bag or bin fill completely before emptying—performance degrades long before the “full” indicator lights up, so emptying at two-thirds full keeps suction strong consistently.