TSI's Model 8127 and 8130 Automatic Filter Testers have a proven track record of durability, reliability and minimum maintenance; they meet all the requirements of the manufacturing environment and quality control. Specially designed aerosol generators and laser photometers provide highly reproducible and repeatable filter efficiency measurements. In addition, the 8127 and 8130 are highly automated and self-diagnostic; which greatly simplifies operation, increases throughput and improves overall measurement performance.