Steril-Aire promoted Derald G. Welles to national accounts manager and Mary D.S. “Lorrie” Todd to northeastern regional sales manager. Welles joined Steril-Aire in 2000. He held positions at HealthWay Products Co., Modine Mfg., Cambridge Filter Corp. and Farr Co. (now Camfil Farr). Todd has held positions at Farr Co. (Camfil Farr), Cambridge Filter Corp., Carolina Filters Inc. and ASCIInc.