Surgical mask tester

SGN’s Surgical mask Filter Testers represent a new generation of testers designed for testing surgical masks and filter media as per ASTM F2299. The Model SMT uses a PSL aerosol that can range from 0.1 to 10 microns. It provides fast, reliable filter efficiency measurements for penetrations as low as .01% (99.99% efficiency). It can handle 1 test per 2 minutes, running complete tests with minimum operator intervention. An onboard microprocessor calculates filter penetration and resistance information over a wide range at a flow rate of 28.3 lpm. Filter test results are presented on a 7-inch HMI touch-panel display and data is saved in internal memory and can be extracted using a flash drive and printed to a computer.