How to Clean Dyson Cordless Vacuum | Full Wash & Dry Routine

The vacuum loses suction when the filter clogs or the brush bar jams with hair and string. The fix is the same across every Dyson cordless model from the V6 to the V15 Detect — empty the bin, wash the filter, and clear the brush bar. The one rule that matters more than any other: never put a wet filter back in the machine.

What You Need Before You Start

Gather a lint-free cloth and a bowl or sink of cold water. No soap, no detergent, no cleaning chemicals — Dyson filters use a washable mesh that soap residue clogs permanently. A coin helps release the brush bar end cap on non-washable cleaner heads. Set aside at least 24 hours for drying time after washing.

Emptying and Cleaning the Bin

Empty the bin the same way every time: hold the machine with the bin pointing downward, push the red release lever, and let the debris fall into a trash bag. Then remove the bin from the main body and wipe the inside with a damp, lint-free cloth. Leave the bin to dry completely before reattaching it. A damp bin traps dust and promotes mold inside the machine.

Removing and Washing the Filter

Every Dyson cordless model uses a washable filter, but the location and water temperature differ by generation. The filter sits at the rear of the machine on the V10 and V15 models, or inside the top of the bin on the V8 (that one is called the pinch pre-filter). On the V6 the filter is on top of the motor housing. Tap the filter gently to knock loose dust, then rinse it under running water until the water runs clear.

If you own a V6 or older V8, use warm tap water. For the V8 pinch pre-filter and every V10 or V15 rear filter, use cold water only — the mesh is finer and hot water can warp it. Gently squeeze the water out of the filter with your hands; do not twist or wring it, because that breaks the mesh fibers. Never put a filter in a clothes dryer, microwave, or near any heat source. The heat melts the filter mesh, and a melted filter kills suction.

Cleaning the Brush Bar

Dyson cordless vacuums come with two types of cleaner heads, and they clean differently.

Washable soft roller heads — found on some V10, V11, and V12 models — let you push up the end cap, slide the roller out, and wash it under cold water. Squeeze the roller dry, stand it upright, and let it dry for 24 hours. Do not wash the end cap itself.

Non-washable brush bars — standard on the V8, V10 Cyclone (sometimes called Venticed), and V15 Detect — require a different approach. Press the cleaner head release button, use a coin to turn the end cap anticlockwise until it unlocks, then slide the bar out. Clear all hair, string, and debris from the bristles using a damp lint-free cloth. Do not wash this type of brush bar under running water. Water seeps into the bearings and causes the brush to seize. Wipe it clean, let it dry if the cloth left it damp, then click the end cap back on clockwise until it locks.

Wiping the Exterior and Checking the Battery

While the filter and brush bar are drying, wipe down the plastic casing and the wand with a damp lint-free cloth. Pay attention to the connectors where the wand clicks into the main body — trapped debris there can cause poor contact.

Dyson recommends storing cordless vacuums at room temperature (18°C–28°C) out of direct sunlight. Running the battery all the way down less than once a month also shortens its lifespan. If your Dyson lives in a hot garage or uninsulated utility closet, Dyson’s battery care guide explains the ideal storage conditions in detail.

Reassembly: The Drying Rule

Do not put the filter, bin, or brush bar back in the vacuum until every part is bone-dry. A wet filter is the most common cause of lost suction and musty smells in Dyson cordless vacuums. Even a slightly damp filter reduces airflow enough that the motor works harder, drains the battery faster, and collects dust inside the machine. If you are in a hurry, aim a fan at the parts — never a hair dryer, because the heat expands the filter mesh and ruins it.

Once everything is dry, reinsert the filter, click the bin back on, and snap the brush bar into place. Run the vacuum on a hard floor for a few seconds to confirm the brush spins freely and the suction sounds normal.

How Often You Should Clean Each Part

For readers who are in the market for a new machine, our tested roundup of the best cordless vacuum for carpet covers models that handle deep pile without losing suction as fast.

Three Mistakes That Ruin a Dyson Cordless

Putting the filter back wet is the fastest way to kill suction. Second fastest is washing a non-washable brush bar — water gets into the motor bearings and the brush stops spinning within weeks. Third is using detergent or soap on the filter; the residue clogs the microscopic mesh pores, and a clogged filter cannot be fully cleaned. A dry, soap-free Dyson runs like new for years.