Casella USA has introduced its TUFF™ line of personal air sampling pumps featuring an over-molding sealed case that protects internal electronics from damaging moisture, extreme temperatures, solvents, and impact. Offering a wide flow range from 5 ml/min to 4.5 l/min, the three pumps that comprise the Casella TUFF line are ideally suited to a wide range of occupational health applications from simple abatement sampling, to more specialized industrial hygiene monitoring of dusts, fumes and vapors. Casella USA, www.casellausa.com, (800) 366-2966. Circle 246
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