How Often Should You Change Your HVAC Air Filter?

APS Home Services • May 18, 2026
Extremely Dirty HVAC Air Filter


Changing your HVAC air filter is one of the simplest and most important things you can do to protect your heating and cooling system.


A clean filter helps:

  • improve airflow
  • support better indoor air quality
  • reduce strain on the HVAC system
  • keep heating and cooling running efficiently


Yet it is one of the most commonly overlooked maintenance tasks in a home.


When a filter becomes clogged with dust, pet hair, pollen, and dirt, your HVAC system has to work harder to move air throughout the house. Over time, that added strain can affect comfort, efficiency, and system performance.



What Does an HVAC Filter Actually Do?


Your air filter helps trap airborne particles before they circulate through your HVAC system and home.


This can include:

  • Dust
  • Pet dander
  • Pollen
  • Lint
  • Hair
  • Other airborne particles


The filter helps protect both your indoor air quality and your HVAC equipment.


Without regular replacement, airflow becomes restricted and your system operates less efficiently.



Why Changing Your Filter Is Important


A dirty air filter may lead to:

  • Reduced airflow from vents
  • Increased dust buildup in your home
  • Higher energy bills
  • Uneven temperatures
  • Increased wear on HVAC components


In some cases, extremely clogged filters can cause avoidable HVAC repair issues.

Regular filter replacement is one of the easiest ways to help your system operate the way it was designed to.



How Often Should You Change Your Air Filter?


For most homes, replacing the filter every 60 to 90 days is a good general guideline.

However, some homes need more frequent replacement depending on lifestyle and system use.


Replace Every 30–60 Days If:

  • You have pets
  • Someone in the home has allergies or asthma
  • Your HVAC system runs heavily year-round
  • You have multiple occupants in the home
  • Your home collects dust quickly


Pet hair and dander can clog filters faster than many homeowners realize.


Replace Every 60–90 Days If:

  • You have an average household
  • No major allergy concerns
  • Standard HVAC usage
  • Minimal pet shedding


Even higher-quality filters should still be checked regularly.



Signs Your Air Filter Needs to Be Replaced


Sometimes the system gives warning signs before you think to check the filter.


Common signs include:

  • The filter appears gray or clogged
  • Weak airflow from vents
  • Dust collecting quickly around the home
  • HVAC system running longer than usual
  • Increased allergy irritation
  • Higher utility bills without explanation


If you notice one or more of these issues, checking the filter is a good first step.



Choosing the Right Filter


Not all filters are the same.


You may have heard terms like “MERV rating” but are unsure what they actually mean.


In general:


  • Lower MERV filters allow easier airflow
  • Higher MERV filters capture smaller particles but can be more restrictive


For many homes, a mid-range filter provides a good balance between filtration and airflow.


Using an overly restrictive filter in a system not designed for it can reduce performance and strain the HVAC equipment.



Don’t Forget the Filter Size


One of the biggest frustrations homeowners face is forgetting the correct filter size when it is time for replacement.


The filter size is typically printed on the side of the filter frame.


Helpful habits include:

  • taking a photo of the filter size
  • writing it near the HVAC system
  • setting calendar reminders
  • scheduling automatic filter deliveries


Consistency matters more than buying the most expensive filter available.  Setting a regular schedule and sticking to it, is the best way to support your systems function and longevity.



The Bottom Line


Changing your air filter regularly is a small maintenance task that can make a big difference.


A clean filter helps:

  • improve airflow
  • support cleaner indoor air
  • reduce system strain
  • improve HVAC efficiency
  • help extend equipment lifespan


For most homes, checking the filter monthly and replacing it every 60–90 days is a smart rule of thumb.


Homes with pets, allergies, or heavy HVAC use may benefit from more frequent replacement.



HVAC Filter Guidance in Northern Virginia


APS Home Services helps homeowners throughout Northern Virginia with:


If you are unsure what filter size, replacement schedule, or MERV rating makes sense for your home, we are always happy to help point you in the right direction.


Recently, we added scheduled Door Step Delivery of  HVAC air filters to our list of services  after hearing from many customers that remembering filter sizes and replacement schedules was frustrating and easy to forget. 


Feel free to click below to see if this is a service that would help you!

Warning Signs Your Dryer Vent Needs Cleaning

By APS Home Services • March 23, 2026
Most homeowners don’t think about their dryer vent — until there’s a problem. The challenge is that a clogged dryer vent often shows warning signs before it becomes a bigger issue. Catching those signs early can help prevent costly repairs, improve efficiency, and reduce fire risk. Here are the most common signs your dryer vent needs cleaning. 1. Clothes Take Multiple Cycles to Dry This is usually the first and most noticeable sign. If your dryer used to dry clothes in one cycle but now takes two or three, airflow is likely restricted. When lint builds up inside the vent: Moist air cannot escape Heat gets trapped inside the system Clothes stay damp longer This is one of the clearest indicators that your dryer vent needs cleaning. 2. Your Dryer Feels Hot to the Touch A properly functioning dryer should feel warm — not excessively hot. If the top or sides of your dryer feel unusually hot, it may be overheating due to poor airflow. Restricted vents trap heat inside the dryer, which: Increases wear on internal components Raises fire risk Reduces efficiency 3. The Laundry Room Gets Warm or Humid If your laundry room feels hot or humid while the dryer is running, that’s a sign the system isn’t venting properly. Instead of exhausting moisture outside, the dryer is pushing warm, damp air back into the room. This can lead to: Longer drying times Increased humidity in your home Potential mold or mildew over time 4. A Burning Smell During Operation A burning smell is a warning sign that should never be ignored. Lint is highly flammable. When it builds up in the vent system and gets too hot, it can produce a burning odor. According to the U.S. Fire Administration, failure to clean dryer vents is a leading cause of dryer-related fires. If you notice a burning smell, stop using the dryer and have the vent inspected and cleaned. 5. Excess Lint Behind the Dryer If you see lint collecting behind your dryer or around the vent connection, it may indicate: A loose connection A blockage in the vent Airflow pushing lint back into the home Lint should be contained within the system and exhausted outside — not accumulating indoors. 6. The Exterior Vent Flap Isn’t Opening Properly Go outside while your dryer is running and check the vent hood. The flap should open fully and allow air to flow out. If it barely moves, stays closed or has lint buildup around it, then airflow is restricted, and the vent likely needs cleaning. 7. It’s Been Over a Year Since Your Last Cleaning Even if you don’t notice obvious signs, time alone can be a factor. For most homes, dryer vent cleaning should be done once per year. You may need more frequent cleaning if: You have pets You do frequent laundry Your vent system is long or has multiple turns Routine maintenance helps prevent problems before they start. Why These Signs Matter A clogged dryer vent is more than just an inconvenience. It can lead to higher energy bills, increased wear on your dryer, longer drying times and increased fire risk. Addressing these warning signs early helps keep your home safer and your dryer running efficiently. Dryer Vent Cleaning in Northern Virginia APS Home Services provides professional dryer vent cleaning throughout Northern Virginia, including Burke, Fairfax and Springfield. We believe in: Friendly, professional service Clear, upfront pricing No surprise add-ons Thorough cleaning If you have questions about your vent setup or pricing, we’re happy to walk you through it before scheduling. Call or text 703-624-0100.
APS Home Services Dryer Vent & Air Duct Cleaning Company, Owner

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