The Science Behind MERV Ratings and Indoor Air Quality

When it comes to maintaining your HVAC system, one of the most crucial yet often overlooked components is the air filtration system. At ATS Mechanical, we frequently encounter homeowners in Cypress and The Woodlands who are uncertain about which filter rating best suits their needs.

MERV (Minimum Efficiency Reporting Value) ratings range from 1 to 20, with higher numbers indicating better filtration. Here’s what you need to know:

MERV Rating Breakdown:

  • MERV 1-4: Basic filtration, catches large particles
  • MERV 5-8: Medium filtration, good for residential use
  • MERV 9-12: Superior residential filtration
  • MERV 13-16: Hospital-grade filtration
  • MERV 17-20: Clean room and surgical filtration

For most homes in Spring and Tomball, we recommend MERV ratings between 8 and 13. Higher ratings might seem better, but they can restrict airflow and strain your HVAC system if it’s not designed for such dense filtration.

Remember that proper filter maintenance involves regular replacement, typically every 60-90 days. However, homes with pets or high dust levels may require more frequent changes.

To ensure optimal performance of your heating and cooling system, consider factors like:

  • Local air quality
  • Presence of pets
  • Family members with allergies
  • System specifications

Regular maintenance and proper filter selection can significantly extend your HVAC system’s lifespan while maintaining healthy indoor air quality throughout Klein and surrounding areas.

Contact ATS Mechanical today to learn more about optimizing your home’s air filtration system for maximum efficiency and comfort.