Understanding MERV Ratings For Better Indoor Air Quality


The Impact of Air Filter Ratings on Your Home’s Air Quality

When it comes to maintaining optimal indoor air quality, one of the most crucial yet often overlooked components is the air filtration system in your HVAC unit. Understanding MERV (Minimum Efficiency Reporting Value) ratings can make a significant difference in your home’s air quality and your system’s performance.

What Is a MERV Rating?

MERV ratings range from 1 to 20, with higher numbers indicating better filtration of smaller particles. Here’s a breakdown of common MERV ratings and their applications:

  • MERV 1-4: Basic filtration for residential use
  • MERV 5-8: Better residential filtration, capturing pollen and dust mites
  • MERV 9-12: Superior residential filtration, trapping pet dander and fine particles
  • MERV 13-16: Hospital and commercial grade filtration
  • MERV 17-20: Clean room and surgical facility grade

Choosing the Right MERV Rating

For most residential applications, a MERV rating between 8 and 13 provides excellent filtration without restricting airflow. However, it’s essential to consider your specific needs:

  • Allergy sufferers may benefit from MERV 11-13
  • Average homes do well with MERV 8-10
  • Older HVAC systems might perform better with MERV 6-8

Remember that higher MERV ratings require more energy to push air through the filter, potentially increasing utility costs. Regular maintenance and filter changes are crucial for maintaining optimal system performance and indoor air quality.

Contact us today to help determine the ideal MERV rating for your home’s specific needs and ensure your HVAC system operates at peak efficiency while maintaining healthy indoor air quality.