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How to Clean a Bathroom Exhaust Fan

Use a blast of canned air to quickly clean dust from the wall and ceiling grilles of vent fans and heating/air conditioning systems.

By the DIY experts of The Family Handyman Magazine

Dust grilles with canned air

If the grille on your bathroom exhaust fan is clogged with dust, try a trick that's faster and more effective than vacuuming: Turn on the fan and blast out the dust with "canned air." The fan will blow the dust outside. This works on the return air grilles of your central heating/cooling system too. Run the system so that the return airflow will carry the dust to the filter. You'll find canned air at home centers and hardware stores, usually in the electrical supplies aisle. Caution: The cans contain chemical propellants, not just air. Don't let children play with them.

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Required Materials for this Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.

    • Canned air

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