The Science Behind Clean Indoor Air
When it comes to maintaining optimal indoor air quality, understanding the technical aspects of filtration systems is crucial. At Farley & Hysaw, we believe in educating our customers about the importance of proper air filtration in their HVAC systems.
What is MERV?
MERV (Minimum Efficiency Reporting Value) represents the standard measurement scale for air filter effectiveness. The scale ranges from 1 to 20, with higher numbers indicating better filtration of smaller particles.
Common MERV ratings and their applications:
- MERV 1-4: Basic filtration for window units
- MERV 5-8: Residential systems, light commercial
- MERV 9-12: Superior residential filtration
- MERV 13-16: Hospital general surgery
- MERV 17-20: Clean room/surgical environments
Technical Considerations
Higher MERV ratings don’t always mean better performance for your system. Consider these factors:
- Static pressure requirements
- System compatibility
- Energy consumption impact
- Replacement frequency needs
For optimal performance, most residential HVAC systems work best with filters rated MERV 8-11. This range provides excellent particle capture while maintaining proper airflow and system efficiency.
Remember that regular maintenance and proper filter selection are vital for maintaining indoor air quality and system longevity. Contact our technical team for a professional assessment of your system’s filtration needs.
Filter Particle Capture Efficiency
Understanding particle size capture is essential:
- 3.0-10.0 microns: Pollen, dust mites, spray paint dust
- 1.0-3.0 microns: Most bacteria, auto emission particles
- 0.3-1.0 microns: Smoke, air freshener droplets
Choosing the right filtration level ensures your system operates at peak efficiency while maintaining healthy indoor air quality for your family or business.