English
中文简体The filter of a rechargeable vacuum cleaner needs to be cleaned regularly, otherwise it will directly affect the cleaning effect and cause related problems. The following are the key points:
1. Core purpose of cleaning: to maintain suction foundation
Airway blockage effect: After the filter screen accumulates dust, the airflow is blocked, and the vacuum cleaner needs to increase power to maintain suction, resulting in a sharp increase in power consumption and a sharp decrease in battery life. Long term overload operation can damage the motor.
The vicious cycle of 'the more you use, the weaker you become': Unclean filters cause dust to be sprayed back into the air, forming an ineffective cycle of 'vacuuming → partial discharge → re inhalation'.
2. The three major derivative risks of not cleaning
Fungal spore contamination: In humid areas or after inhaling wet garbage, residual moisture in the filter screen breeds black mold, which sprays harmful microorganisms during operation (especially endangering respiratory sensitive populations).
Odor reflux: Accumulated food debris and pet hair ferment in the filter, emitting a putrid odor when vacuuming, polluting indoor air.
Short circuit caused by moisture in the circuit: The water washed filter screen was not completely dried before installation, and residual moisture corroded the metal parts of the motor, causing malfunction.
3. Cleaning strategies for different filters
| Filter Type | Proper Cleaning Steps | Prohibited Actions | Critical Failure Signs |
| HEPA Filters | ► Tap dust out outdoors► Soft-brush grooves gently► Air-dry 24-48hrs in shade | * Washing with water* Sun-drying* Using compressed air | ► Visible tears when backlit► Mold spots that won’t brush off |
| Foam Pre-Filters | ► Rinse under cool running water► Squeeze (don't twist) moisture out► Dry vertically 48-72hrs | * Machine drying* Detergent use* Wringing distortion | ► Permanent odor retention► Stiffening/cracking texture |
| Cyclone Mesh | ► Wipe with damp microfiber cloth► Use toothpick for clogged vents► Dry completely upside down | * Soaking/submerging* Metal brushes* Oven heat drying | ► Bent/dented metal grids► Rust formation on wires |
| Charcoal Filters | ► Vacuum surface dust► Freeze 2hrs to deodorize► Never wash | * Moisture contact* Chemical cleaners* Physical scrubbing | ► Granule leakage from casing► Persistent sour smell |
| Multi-Layer | ► Disassemble layers separately► Soft brush → damp cloth → air dry► Reassemble ONLY when bone-dry | * Dishwashers* Hairdryers* Reassembly with damp parts | ► Layer separation► Warped plastic frames |
4. User operation red line
Water washing exclusion zone: Paper filters and activated carbon filters will be discarded when they come into contact with water, and can only be cleaned with a vacuum cleaner for back blowing.
Drying taboos: After the filter is exposed to sunlight, the fibers become brittle, and the UV radiation on the HEPA filter actually reduces the filtration accuracy.
The iron rule for installation: stick the filter screen by hand to feel the moisture, and only install it when it is completely dry and has no cooling sensation, otherwise the motor is equivalent to "soaking in water".
5. Replace>Clean the critical signal
Structural damage: Tearing of filter edges, deformation of support mesh, and holes in HEPA filter paper (visible through small holes when exposed to light).
Performance failure: After thorough cleaning and drying, if the suction still recovers less than 70%, or if the odor persists during operation.
Biological pollution traces: Mold spots and black spots appear on the surface of the filter, and traces are still left after wiping with alcohol.
