How to Choose the Best Air Filter for Your Home

When was the last time you thought about your air filter? If you’re like most people, it probably doesn’t cross your mind until your HVAC system starts struggling or your allergies flare up. But here’s the thing: your air filter plays a huge role in your home’s air quality, HVAC performance, and even your energy bills.

Let’s break down the different types of air filters, how to choose the right one for your needs, and how often you should change them. By the end, you’ll know exactly what to look for—and when it’s time to give Chandler Air a call for help.

Why Air Filters Matter

Before we dive into types, let’s quickly talk about what air filters actually do. Their main job is to trap dust, pollen, pet dander, mold spores, and other airborne particles before they circulate through your home. A good filter keeps your air cleaner and helps your HVAC system perform more efficiently.

But not all air filters are created equal. Choosing the wrong one—or forgetting to change it—can lead to poor air quality, higher energy bills, and even costly system repairs.

The MERV Rating Explained

When shopping for air filters, you’ll often see something called a MERV rating (short for Minimum Efficiency Reporting Value). It ranges from 1 to 20, and it tells you how effective the filter is at capturing particles.

• MERV 1–4: Basic filtration. Good for capturing larger particles like dust and lint.
• MERV 5–8: Standard for most homes. These catch smaller particles like mold spores and pet dander.
• MERV 9–12: Better filtration for people with allergies or asthma.
• MERV 13–16: Hospital-grade filtration. Great for superior air quality but may restrict airflow if your HVAC system isn’t built for it. These filters are becoming more common.

Now that we’ve covered that, let’s look at the types of filters out there.

Types of Air Filters

1. Fiberglass Filters

Pros:

• Inexpensive
• Easy to find
• Good for basic dust control

Cons:

• Low MERV rating (usually 1–4)
• Doesn’t catch smaller particles like pollen or mold
• Not great for allergy sufferers

Maintenance Tip: These should be replaced every 30 days, no exceptions. They clog quickly and aren’t reusable.

Who They’re For: If you don’t have pets, allergies, or asthma—and just want something cheap to protect your system—fiberglass might work. But be aware, they offer minimal air cleaning.

 

2. Pleated Filters

Pros:

• Better particle capture (MERV 5–13)
• Affordable
• Available in a wide range of sizes and thicknesses

Cons:

• May restrict airflow if you choose a high MERV and your system isn’t compatible
• Slightly more expensive than fiberglass

Maintenance Tip: Change every 60 to 90 days, but if you have pets or allergies, every 30–45 days is better.

Who They’re For: Most homeowners. Pleated filters strike a good balance between cost, efficiency, and performance. They’re ideal if you want cleaner air without upgrading your whole system.

3. Washable (Reusable) Filters

Pros:

• Eco-friendly and cost-effective over time
• Can last several years with proper care

Cons:

• Lower MERV ratings (typically 1–4)
• Require regular cleaning and drying
• Can harbor mold if not completely dry

Maintenance Tip: Clean once a month and let it dry completely before reinstalling.

Who They’re For: DIYers who are consistent with maintenance. Not ideal for homes with high air quality needs, but washable filters are suitable for basic filtration and protection. 

4. Electrostatic Filters

Pros:

• Uses static electricity to attract particles
• Available in disposable and washable versions
• Mid-range MERV (5–10), depending on type and build quality

Cons:

• May not capture the finest particles
• Performance can drop over time if not maintained

Maintenance Tip: Clean or replace every 1 to 3 months, depending on the model and household conditions.

Who They’re For: People looking for a middle ground between cost, performance, and longevity.

5. HEPA Filters

Pros:

• Removes 99.97% of particles down to 0.3 microns
• Best for asthma, severe allergies, or compromised immune systems

Cons:

• Very dense—most residential HVAC systems aren’t designed for them. They exceed MERV 16 in performance.
• Can significantly restrict airflow if not compatible
• Often requires a retrofit or special unit

Maintenance Tip: Replace every 6–12 months, depending on use and manufacturer recommendations.

Who They’re For: Homes with serious health concerns. You’ll need to work with a professional to install them properly—don’t try to DIY this one.

Other Things to Consider

Before you hit “Add to Cart,” here are a few quick tips to make sure you’re getting the right filter.

• Check your system specs: Not all systems can handle high-MERV filters. If in doubt, ask a pro.
• Size matters: Filters come in all kinds of sizes, so double-check your current filter or your system’s manual.
• Lifestyle counts: Got pets? Allergies? Smoke indoors? You’ll want a filter with a higher MERV and a shorter replacement cycle.

How Often Should You Replace Your Air Filter?

Here’s a general breakdown, but your home might need more frequent changes:

• Fiberglass: every 30 days
• Pleated: every 60–90 days (or 30–45 with pets/allergies)
• Washable: clean monthly
• Electrostatic: 1 to 3 months
• HEPA: 6 to 12 months

A dirty filter doesn’t just clog up your system—it can make your air feel stuffy, worsen allergy symptoms, and make your HVAC unit work overtime.

Not Sure What Filter Is Best? Chandler Air Can Help

Still feeling unsure about which air filter is right for your home? That’s totally normal—there are a lot of options out there, and your best choice depends on your home, lifestyle, and HVAC system.

At Chandler Air, we help homeowners across the Valley breathe easier with expert guidance, reliable HVAC service, and filter recommendations that actually make sense for your space. Whether you need a quick filter swap or AC maintenance, we’ve got your back.

Call us today or schedule online for expert help with your air filter and HVAC needs. Cleaner air is just a filter away.