Textest AG manufactures and supplies testing equipment for air permeability and watertightness for the textile, nonwoven, filter, paper and plastics industries. Product lines include laboratory, online and portable air-permeability testers, hydrostatic head testers, water-vapour transmission testers, thickness gauges, pick counters and evaluation software; the company also offers calibration, maintenance, spare parts and support services and develops products in-house with manufacturing in Switzerland.