The Truth About MERV Ratings in Your Home

When it comes to maintaining your indoor air quality, understanding MERV ratings is crucial. At Same Day AC Service, we often encounter homeowners who are confused about which air filters best suit their HVAC systems.

What is MERV?

MERV (Minimum Efficiency Reporting Value) represents a filter’s ability to capture particles between 0.3 and 10 microns. The rating scale runs from 1 to 20, with higher numbers indicating better filtration.

Common MERV ratings and their applications:

• MERV 1-4: Basic residential filtration
• MERV 5-8: Better residential and light commercial
• MERV 9-12: Superior residential and commercial
• MERV 13-16: Hospital and general surgery
• MERV 17-20: Cleanroom and surgical facilities

Choosing the Right Rating

Most residential systems work best with filters rated between MERV 8 and MERV 13. Going too high can restrict airflow and strain your system, while too low might not provide adequate filtration.

Important considerations for filter selection:

• System compatibility
• Local air quality
• Household occupants’ health needs
• Maintenance frequency

Remember that higher MERV ratings require more frequent changes due to their enhanced particle capture ability. For optimal performance, consult with our experienced technicians who can assess your specific needs and system capabilities.

Regular maintenance and proper filter selection ensure your HVAC system operates efficiently while maintaining healthy indoor air quality for your family.