When it comes to maintaining your HVAC system, changing your air filter is one of the easiest
and most important things you can do. But with all the different sizes, types, and ratings on the
market, choosing the right air filter can feel a little overwhelming. At Austin Cool Air, we’re here
to clear the air (literally). In this guide, we’ll break down exactlywhat you need to know to pick
the perfect air filter for your home, so you can improve air quality,
protect your HVAC system, and breathe a whole lot easier.
Why Your Air Filter Matters
Your HVAC filter is your home’s first line of defense against: dust, pollen, pet dander, mold
spores, smoke particles, and other airborne contaminants. A clean, well-matched filter helps your HVAC system run more efficiently, reduces wear and
tear, and creates a healthier environment for you and your family. The wrong filter, on the other
hand, can reduce airflow, increase energy usage, and lead to expensive repairs.
Step 1: Know Your Filter Size
Before you even think about MERV ratings or materials, you need to make sure the filter fits
your system.
How to find your size:
● Check the label on your current filter (it’s usually printed on the frame).
● Common sizes include 16x20x1, 20x25x1, 20x20x4, etc.
● Measure it yourself if it’s not labeled (width x height x depth in inches).
Pro Tip: Always double-check the size before buying, a poorly fitting filter won’t do its job
effectively.
Step 2: Understand MERV Ratings
MERV stands for Minimum Efficiency Reporting Value, and it’s the key to understanding how
well a filter captures particles. You can call a professional near you to learn more!
Step 3: Choose a Filter Type
There are several types of filters available, each with its own pros and cons.
1. Fiberglass Filters
2. Pleated Filters
3. Electrostatic Filters
4. HEPA Filters
Step 4: Consider Your Lifestyle
Still not sure which filter is right for you? Think about your household:
● Do you have pets? → Go with a pleated or electrostatic filter (MERV 8–11).
● Allergies or asthma? → Choose a MERV 11–13 filter.
● No major concerns? → A standard pleated MERV 8 filter will do the trick.
● Want to go green? → Opt for a washable electrostatic filter.
Choosing the right air filter can seem small, but it plays a huge role in your home’s comfort and
air quality. At Austin Cool Air, we help homeowners across Central Texas find the perfect filter,
maintain their HVAC systems, and breathe easier all year long.
Need Help With Your HVAC Filter? Let our experts help you choose the best option for your
system and lifestyle, or book a free consultation with our HVAC pros today!
