A Step-by-Step Guide to Cleaning Your Chimney Filter at Home

A kitchen chimney is the unsung hero of the modern kitchen. It whisks away smoke, odors, and—most importantly—airborne grease. However, over time, that grease settles into the filters, clogging the mesh and forcing the motor to work twice as hard.

If your chimney has become noisier or isn’t clearing smoke like it used to, it’s time for a deep clean. Here is how you can do it at home using simple household ingredients.

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Why Regular Cleaning Matters

Before we dive in, remember that a clogged filter isn’t just a performance issue; it’s a safety hazard. Accumulated grease is highly flammable. Regular cleaning (ideally every 2–4 weeks depending on your cooking style) ensures:

  1. Better Suction: Improved airflow keeps your kitchen smoke-free.
  2. Lower Electricity Bills: The motor runs more efficiently.
  3. Increased Lifespan: Prevents the motor from overheating and burning out.

Is your chimney still struggling after a filter clean? Our expert technicians specialize in deep-cleaning the internal motor and blowers to keep your kitchen air fresh. Book a service visit today and get your chimney back to 100% efficiency!

What You’ll Need

  • A large tub or bucket (big enough to submerge the filters)
  • Boiling hot water
  • Cleaning Agent: Dish soap, Baking soda, or Caustic soda (for heavy grease)
  • A soft-bristled scrub brush or old toothbrush
  • Microfiber cloth

The Step-by-Step Process

  1. Safely Remove the Filters

Ensure the chimney is switched off. Most baffle or mesh filters have a small latch or handle. Carefully pop them out—be mindful, as they may be slippery with oil.

  1. The Hot Water Soak

Fill your tub with boiling water. Add a generous amount of liquid dish soap and 2 tablespoons of baking soda.

Professional Tip: If your filters haven’t been cleaned in months, use Caustic Soda. Place the filters in a tray, sprinkle the soda over them, and pour hot water. Caution: Use gloves and stay back, as this creates fumes.

  1. Let it Sit

Let the filters soak for at least 30 to 60 minutes. This time allows the heat and chemicals to break the molecular bonds of the hardened grease.

  1. Scrub Away the Residue

Once the water has cooled slightly, use your brush to gently scrub the mesh. The grease should come off in clumps. Ensure you scrub the corners and the frame where oil often hides.

  1. Rinse and Dry Completely

Rinse the filters under running lukewarm water until all soap residue is gone. Crucial Step: Let the filters air dry completely. Reinstalling wet filters can trap moisture inside the chimney’s internal components, leading to rusting or electrical shorts.

When to Call a Professional

While DIY cleaning is great for filters, the internal fan blades and motor also accumulate grease that you cannot reach at home.

If you notice a vibrating sound, a lingering burning smell, or if the exterior of the chimney remains sticky despite your best efforts, it’s time for a Professional Deep Service.