Airguard, a CLARCOR Company, has published Volume 1 of Airguardian, an industry newsletter created to tackle issues, discuss standards, and review products related to air filtration within the commercial, industrial, medical and institutional sectors. Subscriptions to the newsletter are free by contacting Gary Heilmann, director of marketing, Airguard, P.O. Box 32578, Louisville, KY 40232. Phone: 502-969-2304. Fax: 502-961-0930.