National Air Filtration Association (NAFA) Technical Seminar

(Friday, April 27, 2007) The National Air Filtration Association (NAFA) will be holding its 2007 Technical Seminar in Phoenix, AZ on May 2-4, 2007. For more information, please go to www.nafahq.org.

ASHRAE Looks at Combining Air Filter Testing Procedures

(Friday, April 27, 2007) Proposed Addenda. Open for Review. ASHRAE Looks at Combining Air Filter Testing Procedures. Please see www.ashrae.org/publicreviews for more information.