How the ASHRAE 52.2 Helps You Select an Air Filter For 30 years tests for air filters were done according to ASHRAE 52.1. This test provided an efficiency rating such as a 30%, 65%, 90%, etc. This system is relatively easy to understand. However, it has some major deficiencies in that it does not provide … More
Allergy Proofing Articles
Our allergy proofing articles cover a variety of subjects, provide useful information, and may help answer your questions regarding allergy proofing your home, protecting yourself from mold, understanding MERV, and the dangers of various sustances found in products.