When it comes to home maintenance, most of us remember the basics, like vacuuming the floors, cleaning the bathroom, maybe even changing the sheets regularly. But there are a few hidden heroes quietly working behind the scenes to keep your home clean, safe, and efficient: filters. These often-overlooked components can make a big difference in how your appliances perform and how healthy your living environment is.
Let’s talk about three filters you should absolutely be cleaning or replacing on a routine basis—and why ignoring them can cost you in more ways than one.
1. Dishwasher Filter
Why it matters:
Your dishwasher filter catches food particles and debris to prevent them from being redeposited on your dishes or clogging the drain. Over time, it can become clogged and smelly, reducing your dishwasher’s efficiency and leaving a residue on what should be sparkling clean dishes.
How often to clean:
Every month (or more frequently if you use your dishwasher daily).
How to clean it:
Most modern dishwashers have an easily removable filter at the bottom. Simply twist and lift it out, then rinse it under hot water. Use a soft brush or toothbrush to scrub away stuck-on debris. Be sure to check for gunk underneath the filter area, too.
2. Washing Machine Filter
Why it matters:
Your washing machine filter traps lint, coins, hair, and other debris (in my house that would be Legos) from the wash. A dirty filter can cause drainage problems, smelly laundry, and strain your machine’s motor over time.
How often to clean:
Every 1 to 3 months, depending on how often you do laundry and the model of your washer.
How to clean it:
Front-load washers usually have a small panel near the bottom front of the machine that hides the filter. Turn off the machine, open the panel, and carefully unscrew the filter (place a towel or pan underneath—it can leak water). Clean out any debris, rinse it thoroughly, and screw it back in.
There may also be a hose that you should drain at the same time within this panel.
Top-load washers may have filters inside the drum or along the rim, or under the center agitator—check your manual. Some new washing machines may not have filters as they rely on a pump that self cleans, lucky you!
3. Furnace Filter (or HVAC Filter)
Why it matters:
This filter cleans the air that circulates through your heating and cooling system, removing dust, pet dander, pollen, and other allergens. A clogged filter can lead to poor air quality, higher energy bills, and even damage your HVAC system.
How often to clean or replace:
Every 1 to 3 months, depending on the filter type, season, and if you have pets or allergies.
How to clean or replace it:
Turn off the furnace, remove the old filter (note the airflow direction marked on it), and either wash it if it's reusable or replace it with a new one. Make sure it fits snugly and matches your system’s specifications. If you have floor vents you might consider removing the vents to clean the grates and vacuum out the vent space on the same day you change your furnace filter.
Final Thoughts
Cleaning these three filters regularly is a small task with big benefits. It can save you money on energy bills, prevent costly repairs, and keep your home running smoothly and healthily. Add these to your seasonal or monthly checklist, and your appliances—and your lungs—will thank you. And, you never know how many missing Legos you might find!
Bonus Tip:
Set a recurring reminder on your phone or calendar. “Clean filters” isn’t exactly an exciting to-do, but it’s one of the smartest habits you can build as a homeowner.