
Cleaning a push mower air filter is a simple yet crucial maintenance task that can make a big difference in your lawn mower's performance. It's recommended to clean the air filter every 25 hours of use or more often in dusty conditions.
The air filter's purpose is to keep debris and dust out of your mower's engine, which can clog the filter and reduce airflow. This can lead to a decrease in engine power and potentially cause damage to the engine over time.
Foam
Foam air filters are a type of filter used in some lawn mowers. They're made of soft, spongy material and are usually rectangular or cylindrical in shape.
Foam filters can be washed, dried, and reused multiple times, making them a more eco-friendly option compared to paper filters. This is because they can be cleaned and reused, rather than being thrown away and replaced.
To clean your foam air filter, you can wash it with soap and water, then let it dry completely before reinstalling it. However, if the foam is starting to tear, crack, or feel brittle, it's time to replace it.

Here are some key things to know about foam air filters:
Overall, foam air filters are a great option for lawn mowers, and with proper maintenance, they can last for a long time.
Locating and Removing the Air Filter
Locating the air filter is a straightforward process. It's usually inside a plastic or metal cover on the side of the engine for push mowers, while for riding mowers, it's on top of the engine, under a large cover.
To locate the air filter on a push mower, look for a rectangular or square plastic or metal cover on the side of the engine. It's usually secured with clips, screws, or a wing nut. For riding mowers, open the mower's hood or engine cover to find the air filter housing, which is larger and more visible than on push mowers.
Take a picture with your phone before removing the filter, as suggested by Amanda, to ensure you can put it back in the same direction.
Here's an interesting read: Riding Lawn Mower Air Filters
Locate Your Air Filter

The air filter is usually inside a plastic or metal cover on the side of the engine, which is secured with clips, screws, or a wing nut.
For push mowers, the air filter housing is typically rectangular or square, while for riding mowers, it's larger and more visible, held in place by clips, screws, or a latch.
To find the air filter on a push mower, look for a plastic or metal cover on the side of the engine.
On riding mowers, the air filter is usually located on top of the engine, under a large cover, which you can open by lifting the mower's hood or engine cover.
Remove the Air Filter
To remove the air filter, you'll need to access it after locating it. The cover or housing typically protects the air filter, so you'll need to remove that first.
If the cover has screws, you'll need a screwdriver to open it. However, if it just has a clip, you can snap it open by hand.

Take a picture of the air filter before removing it, so you can put it back in the same direction when you're done. This is a great tip from my co-worker Amanda, who maintains her Honda lawn mower.
Now that you have access to the air filter, you can remove it. This is also a good opportunity to check how dirty it is and decide whether cleaning can salvage it.
You'll need to identify the type of air filter you have, which can be paper, foam, or dual element/hybrid.
Maintaining Your Mower
A clean air filter is essential for your lawn mower's engine to last longer and run cooler. This is especially true if you live in an area with high grass growth or frequent debris accumulation.
A dirty air filter can cause the engine to work harder, which may result in expensive repairs down the line. This is because dirt and debris can get into the engine and damage its internal components.
Regular maintenance of your air filter can improve your mower's performance by increasing fuel efficiency. This means you'll get more done with less effort and fewer trips to the gas station.
Here are some key benefits of maintaining your mower's air filter:
- Enables the engine to last longer and run cooler.
- Prevents dirt and debris from getting into the engine.
- Improves the mower’s performance by increasing fuel efficiency.
- Protects against damage to the engine’s internal components.
Changing the Air Filter
Changing the air filter on your push mower is a relatively simple process, and it's essential to do it regularly to maintain your mower's performance.
You should change your air filter once a season, before you use it for the first time in the year.
However, if you live in an exceptionally dusty area, you may need to inspect and clean the filter after each use.
The type of grass you mow can also affect your mower's air filter. If you mow wet grass, it can produce excessive moisture, which can clog the filter more often.
To change the air filter, find the air filter unit, remove the cover, and take out the old filter.
Replace the filter with a new one that matches the specifications for your mower. JAK Max stocks air filters are made from high-quality materials and designed for a wide variety of lawn mower makes and models.
Here's a quick checklist to ensure you change your air filter correctly:
- Find your air filter unit
- Remove the cover
- Take out the old filter
- Replace with a new filter that matches your mower's specifications
- Screw the cover on again, making sure the filter is seated properly
How Often to Replace Your Filter
Replacing your air filter is a crucial part of maintaining your push mower's performance and longevity.
You should replace your air filter after 150 hours of use, according to Amanda's owner's manual. This can translate to every 5 to 6 years, depending on how often you mow.
In dusty conditions, you might need to replace your air filter more often. If dirt remains trapped after a good cleaning, it's time to replace it.
A general guideline for foam filters is to replace them after 25 hours of use or every 3 months.
Here's a quick reference guide to help you keep track of when to replace your air filter:
If you mow in wet conditions, your air filter may need to be replaced more frequently due to excessive moisture. Similarly, if you mow in areas with high pollen counts, your filter may clog more quickly.
Frequently Asked Questions
How do you clean a pusher air filter?
Submerge the air filter in water with the narrow end down and large flange up, and let it soak for 20-30 minutes to loosen dirt
Can you reuse a lawn mower air filter?
Yes, a lawn mower air filter can be reused multiple times with proper maintenance, such as washing and drying. However, it's recommended to replace the filter when it starts to show signs of wear.
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