Fan Updated: 12 Dec 2025

How to Clean Exhaust Fan in Kitchen: Step-by-Step Guide

A greasy kitchen exhaust fan is not just ugly but it slows air movement, disperses odors and might cause overload to the motor in the long run. It is very important to learn the correct method of exhaust fan cleaning in a kitchen setup to keep your cooking area cleaner, safer, and save more energy.

This guide gives an explanation on how to clean removable and fixed exhaust fans, frequency of cleaning them, and how to avoid heavy accumulation of grease without duplicating any form of article and text. 

Kitchen Exhaust fan Cleaning in a Nutshell

In cleaning a kitchen exhaust fan, the power should be switched off, the front mesh or cover removed and dust removed. Wet the mesh and detachable blades in a hot water and dishwasher soap mixture, scrub grease, wipe down the motor casing with a wet towel (but never wet it) and then completely dry everything and then assemble the fan back together. 

In the fans that you are unable to disassemble, clean there: vacuum or dust, spray a safe de-greaser or vinegar solution on a cloth, clean the blades and the casing with the help of the cloth and allow the fan to dry completely before turning it on again. 

What is the Frequency of the Cleaning of a Kitchen Exhaust Fan?

  • The frequency of cleaning will be determined by the way and what you cook:
  • Light cooking (boiling, steaming, heating up): after every 4-6 months.
  • Not that often Indian-style cooking (tadka, shallow frying): Every 2-3 months.
  • Every 4-8 weeks in case there is frequent frying.

Other than these periods, have kitchen exhaust fan cleaning done when you observe sticky dust attached on the mesh, a change in noise or when you see grease strands hanging visibly on the blades.

Indications Your Exhaust Fan requires cleaning immediately

You have not to await a whole program; your fan so frequently informs you that you should take care of it:

  • Your fan starts making noise or start vibrating
  • The steam and vapor remain longer in the dining-room.
  • The mesh visibly appears dark, sticky or clogged.
  • The fan or the wall has oil droplets or brown streaks around it. When flicking the switch to the fan, a burnt or smoky smell comes about.

The appearance of at least two of these indicators indicates that the time to clean the exhaust fan kitchen surfaces is already available.

Pre-Cleaning Safety During the Exhaust Fan Cleaning

Before you start clean exhaust fan kitchen attention should be paid to safety: 

  • Switch-off the fan and disconnect it or turn off the MCB.
  • Wear gloves, preferably safety glasses in case you are using a spray.
  • Place a newspaper or a piece of old cloth that will be used to collect drips under the fan.
  • Do not pour water or cleaner on the motor. 
  • Make sure all parts to dry up before power is reconnected.

These are small steps which help to drastically reduce the risk of electric shock and damage during cleaning of the exhaust fans.

kitchen exhaust fan cleaning

Supplies You'll Need

In order to clean exhaust fan kitchen efficiently, it is good to have the following items handy: 
 

  • Screw driver (covers, blades)
  • Detergent/washing liquid or detergent or mild detergent.
  • Baking soda and white vinegar.
  • Microfiber towels and paper towels
  • Vacuum cleaner and brush/crevice tools (not necessary but useful)

Both natural and commercial variants cleaners can be effective.

A realistic solution: Use natural cleaners for monthly wipe-downs and use commercial degreasers to use once in a year on deep cleaning.

How to Clean Exhaust Fan of Kitchen (Removable Blades)

When your fan has a removable mesh and blades follow the below steps

Step 1: Switch off the fan and plug out the switch.

Step 2: Take off the Front Mesh/cover.

Step 3: Hold the blade hub and undo the nut or clip at the spot where the blades attach onto the shaft and slide the blades off. 

Step 4: Put hot water into a bucket or a sink, 1-2 teaspoons of dish soap and 1-2 teaspoons of baking soda.  Wet the mesh and the blades within 15-30 minutes. 

Step 5: Scrub the mesh and blades using a soft brush or sponge taking care of corners and joints. 

Step 6: Wipe the inside and the surrounding wall with a piece of microfiber cloth dipped in the same solution and wiped. 

Step 7: Wash the blades and the mesh using clean water and dry them up with a dry cloth. Let them dry naturally within 1-2 hours and then thereafter it is safe to assemble again. 

Step 8: Install the blades again, screw on the nut and then fix the front mesh in place. 

How to Clean Kitchen Exhaust Fan That Cannot be Disassembled

There are also fans that are fixed or installed that are so tight that a homeowner cannot take out the motor assembly. Nevertheless, you can still manage to effectively clean up kitchen exhaust fans in place in such situations. 

Step 1: Power Off: It is a common step while cleaning of an exhaust fan, disconnect or break off power beforehand. 

Step 2: Clean and wash the cover, it is best to remove the front mesh/cover without damaging it as much as possible and vacuum/wipe it as well. 

Step 3: Vacuum the casing and fan, pull with a crevice or a brush attachment to remove loose dust on the blades and cavity Avoid being rough around wiring and open terminals.

Step 4: Spray a piece of cloth with vinegar-water or a weak degreasing solution, but do not spray the fan itself, and wipe the surfaces of the blades and inside frame. 

Step 5: Keep on wiping using dry microfiber cloth till no water is left. 

Attach the dry mesh/cover with a clip or a screw on the back of the dry mesh, turn the power on and operate the fan for a few minutes to make sure everything is running smoothly.

Clean Exhaust Fan Kitchen: Common Mistakes to Avoid

These are some of the most frequent mistakes that can be made to reduce the life of the fans and cause safety problems:

  • Liquid was sprayed directly on the motor or wiring.
  • Applying rough and coarse pads that cut plastic or metal.
  • Washing with the fan still in power.

Such errors may break bearings or lead to rust or even run a fire risk in case of moisture penetrating into the electrical part. 

Expert Advice to Minimize Grease in future

To minimize grease, build up on exhaust adjust a few habits: 

  • Turn the exhaust fan one minute prior to the cooking and ensure it remains on 5-10 minutes later.
  • Deep-frying Lids or splatter screens should be used.
  • Clean the mesh and blades loosely after 3-4 weeks with a vinegar-wet cloth.
  • Store adjacent walls and tiles hygienic; the less grease in the vicinity the less grease is emitted on to the fan.

The practices ensure every exhaust fan cleaning process is done faster and simpler.

Conclusion

Having a clean kitchen exhaust fan is not a mere cosmetic issue; it has a direct impact on the quality of the air in the room, safety and the overall health of the space where you cook. Knowing how to clean up exhaust fan in the kitchen step by step, i.e. whether the blades can be removed or not, will save you grease accumulation, decrease the odors, and make the motor work efficiently throughout years.

FAQs

Q1: How often should I clean my kitchen exhaust fan?

Ans:  Every 2–3 months, or every 4–6 weeks if you cook oily or spicy foods regularly.

Q2: Can I use regular household cleaners on my exhaust fan?

Ans:  Yes, mild household cleaners work, for tough grease use commercial degreaser.

Q3: What are signs my exhaust fan needs cleaning?

Ans: Reduced airflow, loud noise, sticky blades, visible grease, and cooking smells.

Q5: How do you clean an exhaust fan without removing it?

Ans: Spray degreaser, let it sit, scrub gently with a brush, and wipe clean.

Q6: How do I know if my fan is working efficiently?

Ans:  It should pull air quickly, run quietly, and leave no lingering odors after cooking. 

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