Electrical safety
Clean fan and cooker-hood dust
Following the maker’s instructions, remove dust and grease after power is off and parts are cool.
Last reviewed: 2026-10-12
Why it matters
Dust and grease restrict cooling, overheat the motor, and increase electrical-fire risk.
Wrong action
Wet-cleaning internal parts while powered or allowing grease to build up.
Correct action
Switch off and unplug, remove washable parts as directed, and refit only when fully dry.
What to do
- Switch off, unplug, and let the motor and lamps cool.
- Vacuum or dry-wipe dust and wash filters as directed.
- Reconnect only after every part is dry and correctly fitted.
If something happens
For smoke, fire, or electric shock, keep clear, isolate power only if safe, and call 999. Do not touch a casualty while they may still be connected to electricity. Once power is safely isolated, follow dispatcher first aid; if unresponsive and not breathing normally, begin CPR as instructed.
Sources and review
- Electrical and Mechanical Services Department — Household electrical and gas safety guidance
Last reviewed: 2026-09-09 - Electrical and Mechanical Services Department — Household Electrical Safety Handbook
Last reviewed: 2026-10-12 - Hong Kong Fire Services Department — Post-dispatch Advice
Last reviewed: 2026-10-12
This page provides general home-safety information and does not replace medical, legal, electrical, or other professional advice.