How To Clean Lawn Mower Air Filter – A Complete Guidance

Having a lawnmower in the house is the best way to keep your yard clean and fresh. So, to make it do the job, it’s essential to make sure all the parts of the machine are in good condition, especially the air filter. 

The air filter is the most crucial part that is in between the carburetor and the engine. It plays as a shield preventing all debris and dirt from coming into the inside when the machine is working. 

As the air filter appears in many variants, it would be better to know the proper way to clean it. So, in this post, we will show you how to clean lawn mower air filter based on each different style.

Now, let’s get started. 


Why Do You Need to Clean The Air Filter? 

Durable Engine: 

As mentioned, having the air filter clean can avoid several damages since it blocks all the dust and dirt from getting in the engine. Thus, that would help to lengthen the life of your lawnmower. 

Improve the Efficiency:

One of the main reasons you should clean your air filter is to improve your machine performance. Many studies have proved that if your air filter is dirty, it can slow down your machine’s efficiency by 14%. 

Lessen the Emissions: 

Once again, you should clean your machine’s air filter because having it dirty equals the fact that you minimize the airflow into the lawnmower. That can lead to the imbalance of fuel, the air, and other mixtures, creating emissions. 


The air filter is one of the most low-cost components in the lawnmower, and it’s very easy to clean. You don’t have to be an expert to get this work done perfectly, so don’t hesitate to do it frequently. 

How To Clean Lawn Mower Air Filter – Step by Step

What You Need to Have Before Cleansing:

  • A brush specializes in cleaning the air filter
  • Liquid soap 
  • Water
  • Towel or napkins for wiping 
  • Motor oil (you can use the one in this link)

#1. Cleaning a Paper Air Filter

Actually, you don’t need to clean a paper air filter, but instead, you replace it with a new one. And this is how you do it. 

Step 1: Releasing the crew and the cover. Then, you tilt the lawnmower down lightly.

Step 2: Carefully take out the old paper cartridge and put it in the new one. Please make sure all the papers are pleated out.

Step 3: Lastly, you only need to lock the cover and tighten back the crew.

#2. Cleaning a Disposable Foam Air Filter 

Like the previous, you only have to change the old disposable foam to a new one. By following these given step, you are good to go

Step 1: Prepare the lawnmower

The first thing to do is to move your machine to a flat ground for easy starting the replacing process. 

Step 2: Unplug the power cable 

Safety is a priority, so it is important that you switch on the parking mode of the lawnmower and cut off the power. 

Step 3: Remove the top cover

In this step, you only need to locate where the top cover is and then take it off. 

Step 4: Set up the new air filter

After removing the old air filter, you bring out the new one and install it to the machine. Just a reminder, it would be better to check the manual of the machine to buy the correct air filter’s size.   

Step 5: Put back the top cover

Since you finished installing the new air filter, it is now the time to put back the top cover into its place. 

Step 6: Reconnect the cable 

All you have to do in this step is plug in the power cable and turn off the parking mode. 

#3. Cleaning a Foam Air Filter 

Before going to the actual process, you will have to do the same three first steps of the disposable air filter cleaning. And they are preparing the lawn mower, unplugging the power cable, and removing the top cover.

Now, let’s get into the real cleaning.

Step 1: Clean the air filter

After you remove the top cover, you also take out the air filter and bring it to the water source. Next, you rinse it until all the dirt comes off. If there is any grease on the air filter, you use the liquid soap to remove it fully. 

Step 2: Dry the air filter

In this step, you can use either a towel or napkins to dry the air filter. Please remember that it needs to be dehydrated.  

Step 3: Apply motor oil. 

Next, you use a spray to apply the motor oil to both sides of the air filter. Yet, please don’t apply too much of it as it will cause some damages.

Excessive oil can lead to the situation that your machine will produce black smoke while working. So if you find any excess on the air filter, use napkins to remove it. 

Step 4: Replace the filter and cover 

Put back the air filter and cover to their positions.

Step 5: Plug in the power cable

After having done all the above steps, you reconnect the cable and switch off the parking mode. Then, you can use your lawnmower as normal.

#4. Cleaning a Dual Air Filter

Like the previous one, you will still have to do the first three steps before actually cleaning. 

Follow these steps below to know how to clean a dual air filter immediately.

Step 1: Clean the air filter

After taking out both the cover and the air filter, you also have to remove the paper cartridge coming with the air filter. Now soak the filter with water to remove all the dirt. 

You can also use liquid soap to clean the grease on your air filter if there is any of it. And it would help if you always kept in mind not using the air compressor to clean the filter due to its harm.

Step 2: Wipe off the water

Once again, please ensure that your air filter is completely dry before being replaced. Napkins or a towel is fine for removing the water.

Step 3: Spray motor oil.

Spray the oil onto one side as well as another of your air filter. If there is any excess oil, use paper towels to wipe it off to prevent damage. 

Step 4: Clean Air Filter Compartment

For this step, you can utilize a brush to clean the compartment.

Step 5: Put back the filter and reconnect the power cable

Replace all the things that you brought out previously and plug in the power cable. Lastly, you deactivate the parking mode. 

In Short 

After reading the post, we hope you can understand the reason why you should clean the air filter. Additionally, with all the instructions, you can also know how to clean lawn mower air filter in different kinds of it.

Good luck with your work. Thank you for reading.

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