Choosing the right air filter for your HVAC system isn’t just about picking the cheapest option—it’s about ensuring clean, healthy air and protecting your equipment. The key factor? The filter’s MERV rating.

But what exactly is MERV, and how do you know which rating is right for your home?

What Is a MERV Rating?

MERV stands for Minimum Efficiency Reporting Value. It’s a scale from 1 to 20 that measures how effectively an air filter traps airborne particles. The higher the MERV rating, the smaller the particles the filter can catch.

• MERV 1-4: Basic filtration (captures large dust particles)

• MERV 5-8: Better filtration (captures mold spores, pet dander)

• MERV 9-12: High filtration (captures fine dust, pollen, and some bacteria)

• MERV 13-16: Superior filtration (captures smoke, viruses, allergens)

• MERV 17-20: Used in hospitals and cleanrooms (extremely fine filtration)

How to Choose the Right MERV Rating for Your Home

When selecting an HVAC filter, it’s important to balance air quality with system efficiency.

1. For Most Homes: MERV 8-11

A filter in this range is sufficient for capturing common allergens like dust, pollen, and pet dander without putting too much strain on your system’s airflow.

2. For Allergy or Asthma Sufferers: MERV 11-13

If you or your family members suffer from allergies, upgrading to a higher MERV rating can drastically improve your indoor air quality by trapping finer particles.

3. Important Note About High MERV Ratings

Filters rated MERV 13 and above are excellent at cleaning air but can restrict airflow if your HVAC system isn’t designed for it. Reduced airflow can cause your system to work harder, leading to higher utility bills and even system damage.

Why the Right Filter Matters

Using the right MERV-rated filter can:

• Improve indoor air quality

• Extend the life of your HVAC system

• Lower energy costs

• Reduce the frequency of “emergency air conditioner repair” needs

Skipping filter maintenance or using the wrong type can cause airflow problems, dirty coils, and even refrigerant line freezes, resulting in “AC not blowing cold air” complaints.

Trust Jack Frost Heating and Air Conditioning for HVAC Expertise

Not sure which filter is right for your system? Our team at Jack Frost Heating and Air Conditioning can help you choose the best option for your home’s needs and perform professional maintenance to keep your system in top shape.

📞 Call 865-573-5777 or visit www.jackfrostheatingandair.com to schedule your HVAC service today!