Which Air Filter Is Right for Your HVAC System?
Keeping your home’s air clean starts with the right type of filter in your heating and cooling system. Whether you’re battling dust, pollen, mold, or airborne contaminants like pet dander, your filter plays a big role in protecting both your HVAC system and your health.
From pleated air filters to higher MERV ratings, choosing the right option can improve efficiency and reduce issues like allergies and poor airflow.
Changing your air filter regularly is one of the easiest ways to boost your HVAC system’s efficiency and improve your indoor air quality. Whether you’re unsure about your Miller furnace filter size or just want to know the best air filter for home HVAC setups, this guide breaks it all down.
We’ll cover the different kinds of air filters, how to choose the right size, and how often to change furnace filters based on your home’s needs—especially here in Vancouver, WA, where seasonal changes impact your HVAC performance.
Visit our Online Filter Shop to check out all the options we have available.
Different Kinds of Air Filters for Home HVAC Systems?
Here are the most common types of air filters used in home HVAC systems:
1. Fiberglass Filters
Lowest cost, but minimal filtration
Must be replaced monthly
Best for homes without pets or allergy concerns
2. Pleated Filters
Captures both small and large particles
Great for households with pets or allergies
Available in a range of MERV ratings
3. Electrostatic Filters
Self-charging, reusable options available
Ideal for trapping allergens
Good airflow with reliable efficiency
4. HEPA Filters (limited HVAC compatibility)
Extremely fine filtration
Often too restrictive for standard HVAC units
Better for standalone purifiers or custom systems
How to Find the Right Furnace Filter Size
Your filter’s size is usually printed on its edge (e.g., 16x25x1). If you're not sure of your Miller furnace filter size, check the owner's manual or ask a licensed HVAC contractor in Vancouver, WA.
How Often to Change a Furnace Filter
This varies based on filter type and lifestyle factors:
Every 1–2 months: Homes with pets or allergy sufferers
Every 2–3 months: Standard homes without indoor air issues
Every 3–6 months: Vacation homes or rarely used systems
A dirty or clogged filter reduces airflow, causing your system to work harder and driving up your energy bills. Sticking to a replacement schedule is a key part of any good HVAC maintenance plan in Vancouver, WA.
What’s the Best Air Filter for Home HVAC Systems?
It depends on your priorities:
Basic filtration & low cost: Fiberglass (MERV 4–6)
Allergen control: Pleated or electrostatic (MERV 8–13)
Maximum filtration: HEPA (only if compatible with your system)
Not sure what’s best for your system? The team at Miller’s Heating & Air can help recommend and install the right filter to match your setup and home size.
HVAC Maintenance in Vancouver, WA
In addition to regular filter changes, a professional HVAC maintenance plan ensures your system runs efficiently year-round. This includes:
Checking refrigerant levels
Cleaning coils and blower components
Inspecting ductwork and seals
Ensuring proper filter installation
Homeowners in Vancouver and nearby cities like Washougal, Camas, and Ridgefield can benefit from expert seasonal tune-ups to reduce costly repairs and extend system life.
Ready to Upgrade Your Air Filter Routine?
If you’ve been unsure about filter types, sizing, or how often to change your furnace filter, we’ve got you covered. Miller’s Heating & Air offers fast, reliable HVAC service and filter replacements to help you get the most out of your system.
Need Help? Miller’s Heating & Air Has You Covered
Serving Vancouver, WA and surrounding areas like Washougal, Camas, and Ridgefield, our expert techs can help with:
Air filter replacements
HVAC maintenance plans
AC installation in Washougal, WA
Duct sealing in Portland, OR
Gas furnace repair near you
Lennox heat pump systems
And more!
Want better air quality, a healthier home, and lower utility bills?
Call Miller’s Heating & Air today to schedule your tune-up, filter service, or ask about the best HVAC options for your home.
