Indoor Air Resources

Breathe fresh, clean air...indoors and out!

Article Topics/HVAC Standards

ASHRAE, EN, NAFA and other organizations offer important standards and guidance for air filtration system designers and users alike. Stay on top of the latest standards and guidelines.

Back to the Drawing Board for Proposed ISO Filter Standard
MERV Ratings Lack Important Filter Efficiency Details
Filter Specification: 5 Ways You're Doing it Wrong
It's Time You Learned the Unfiltered Truth
Need IAQ Help?
EN 779: Exposed!
MERV A: Exposed!
What is All the Fuss About Submicron Particles?
Updated ASHRAE Standard Helps Buildings Protect Occupant Health
Get Guidance: Go Green
In Search of Good IAQ at ASHRAE Conference
3 Tips to Improve Your IAQ and Productivity This Winter
Understanding the Minimum Efficiency Reporting Value (MERV)
IAQ Links & Resources