can i wash the filters in my dyson v8? they look really dirty.

Diagnosis

The Dyson V8 Absolute utilizes a dual-filtration system consisting of a pre-filter (located at the top of the cyclone assembly) and a post-motor filter (the wrap-around piece at the rear of the motor). When these filters become saturated with fine particulate matter and household dust, the airflow is restricted. This creates a "bottleneck" effect where the motor must work harder to pull air through the machine, often triggering the vacuum's built-in safety mechanism. You will notice this as a "pulsing" or "stuttering" sound—the motor will rapidly turn on and off—or a complete loss of suction power.

This happens because the V8's sensors detect an airflow blockage. If the filters are not cleaned, the motor can overheat, potentially leading to permanent circuitry failure. You can confirm the filters are the culprit if the vacuum runs normally for a few seconds and then begins the pulsing cycle, or if you notice a musty smell emanating from the exhaust vent at the rear of the handle. Visual inspection will usually reveal a grey or brown discoloration on the pleated fabric of the pre-filter.

How to Fix It

1. Remove the Pre-Filter: Locate the pre-filter at the top of the cyclone. Gently pull it straight up and out of the housing. Do not twist it violently, as you may tear the seal.
2. Remove the Post-Motor Filter: Twist the rear filter assembly counter-clockwise to unlock it from the motor housing and pull it away from the machine.
3. Initial Debris Removal: Take both filters outside and tap them firmly against a hard surface or a wall to knock loose the heavy clumps of dust and hair. This prevents the filter pleats from becoming "muddy" when water is added.
4. Wash the Pre-Filter: Hold the pre-filter under a cold, running tap. Run water through the open end (inside out) until the water flowing through the fabric runs completely clear. Turn it over and rinse the exterior.
5. Wash the Post-Motor Filter: Rinse the wrap-around filter under a tap, ensuring water flows through the pleated material. Avoid using soap, detergents, or bleach, as these chemicals can break down the synthetic fibers and reduce filtration efficiency.
6. Extract Excess Water: Firmly squeeze and twist both filters with your hands to remove as much standing water as possible. Shake them vigorously to open up the pleats.
7. The 24-Hour Dry Cycle: Place both filters in a well-ventilated area, preferably in direct sunlight or near a fan. They must dry for a minimum of 24 hours. If the interior of the pre-filter is even slightly damp, it will trap dust instantly upon use and may develop mold or cause the motor to short-circuit.
8. Reinstallation: Once bone-dry, slide the pre-filter back into the cyclone and twist the post-motor filter clockwise until it clicks securely into place.

If That Didn't Work

• Replace the Filters: If the pulsing continues after a deep clean, the filters may be "blinded," meaning the microscopic pores are permanently clogged with oil or fine gypsum dust. Purchase a genuine Dyson V8 replacement filter set; generic third-party filters often lack the correct HEPA rating and can let dust leak back into your room.
• Check the Main Tube and Wand: If the motor still pulses, the blockage is likely not the filter but a physical clog. Remove the wand and look through the tube toward the light. Use a flashlight to check for stuck coins, hair clumps, or children's toys lodged in the "U-bend" of the pipe.
• Clear the Cleaner Head: Turn the vacuum over and inspect the brush bar. Hair often wraps around the end caps of the roller, creating a friction drag that the sensors interpret as a blockage. Use a pair of scissors to cut away hair wraps.
• Inspect the Bin Inlet: Check the small flap where the dirt enters the bin from the tube. If a large piece of cardboard or debris is wedged there, it will restrict airflow regardless of how clean the filters are.

Heads Up

• Never use a Microwave or Oven: Do not attempt to speed up the drying process by heating the filters. High heat will warp the plastic frames and shrink the filter fabric, rendering them useless.
• Avoid Dishwashers: Never put the filters in a dishwasher. The high heat and harsh detergents will destroy the electrostatic properties of the filter material.
• Monthly Schedule: To maintain maximum suction and motor longevity, wash both filters at least once every month. Waiting until the machine pulses means you have already put significant strain on the motor.
• Cold Water Only: Always use cold or lukewarm water. Hot water can cause the pleated material to deform, creating gaps that allow dust to bypass the filter and enter the motor.