how do i clean the main fan part inside the dyson tp07 loop? it looks dusty in there

Diagnosis

The dust accumulation you see inside the TP07 loop amplifier is caused by the Venturi effect. While the HEPA and carbon filters capture most particles, a small percentage of fine dust and electrostatic particles bypass the filters or enter through the top of the machine, eventually settling on the internal airfoil—the slanted surface that pushes air outward. Over time, this creates a "grey film" or visible clumps of dust that obstruct the precise airflow geometry. This buildup is more than an aesthetic issue. When dust accumulates on the internal airfoil, it creates turbulence and increases air resistance, which forces the impeller motor to work harder and can lead to a noticeable whistling sound or a decrease in the perceived "cool breeze" velocity. You can confirm the severity by running the machine on maximum speed (Level 10) and observing if the airflow feels uneven or if the machine vibrates slightly more than usual.

How to Fix It

Because the TP07 loop is a sealed unit, attempting to unscrew the plastic housing will likely crack the proprietary clips and void your warranty. The goal is to remove the debris without introducing moisture into the motor assembly.

1. Power Down: Completely unplug the unit from the wall outlet. Do not simply turn it off via the remote, as the internal capacitors need time to discharge.
2. Vacuum Extraction: Use a vacuum cleaner with a soft-bristle brush attachment (the 2-inch wide dusting brush). Gently run the brush along the inner circumference of the loop, focusing on the narrow slit where the air exits.
3. Compressed Air Blast: Use a can of compressed air (duster). Hold the can upright to avoid spraying liquid propellant. Insert the thin straw nozzle into the loop and use short, sharp bursts to blow dust from the internal airfoil toward the outer edge of the loop where the vacuum nozzle can reach it.
4. Microfiber Detailing: For stubborn grime on the visible inner plastic, use a dry, high-density microfiber cloth wrapped around a plastic spatula or a long-reach cotton swab. Gently wipe the interior curve of the loop. Do not use wet wipes, as the moisture can trap more dust on the airfoil.
5. Final Purge: Run the vacuum one last time over the entire loop to ensure no loosened particles remain inside the amplifier.

If That Didn't Work

• Deep Clean the Pre-Filters: If the loop is dusty, your filters are likely saturated. Check the HEPA filter for a greyish tint. If the filter is clogged, the machine may be pulling air from gaps in the housing rather than through the filter, allowing more dust into the loop. Replace the filter set (Part No: HP07/TP07 compatible) if they are over 12 months old.
• Ionizer Reset: If the dust is sticking via static electricity, run the machine in "Purifier" mode for 30 minutes without the fan oscillation. This can sometimes help shift the electrostatic charge of the particles, making them easier to vacuum out.
• Professional Ultrasonic Cleaning: If the internal airfoil is heavily coated in oily residue (common in kitchens), the unit requires a professional teardown. A technician can disassemble the loop amplifier and use an ultrasonic cleaner or isopropyl alcohol (99%) to strip the airfoil without damaging the plastic.

Heads Up

• Avoid Liquids: Never spray glass cleaner or water directly into the loop. The internal airfoil is made of a specific polymer that can streak or warp, and liquid can seep into the impeller motor, causing a permanent electrical short.
• Check Gaskets: Ensure the filter covers are snapped tight. If there is a gap of even 1mm in the filter housing, "dirty" air will bypass the HEPA media and accelerate dust buildup inside the loop.
• Placement Matters: Avoid placing the TP07 directly next to a curtain or a fabric sofa. The machine can pull lint from these fabrics, which then bypasses the filters and settles inside the amplifier loop.