Impaction-based SKC PPI Samplers, listed in the OSHA Silica Rule, feature pre-oiled impaction substrates that trap larger particles to overcome sample invalidation from tipping that can occur with cyclones. PPI Samplers comprise four internal impactors, each matching a unique point along the ISO 7708 curve. Search “PPI” on www.skcinc.com.

The PortaCount^® Fit Tester provides users with assistance across the entire respiratory protection program, from training to compliance. FitCheck Mode™ and test animations help users achieve a better respirator fit for more staff in less time. Boosts user productivity by making the entire respirator training and fit-testing process more efficient. Visit www.tsi.com/portacount4.

U.S. Micro-Solutions specializes in the analysis of bacteria and fungi from indoor environments, medical devices, water, and pharmaceutical sterile compounding settings. We are ISO17025 compliant (AIHA EMLAP*) and hold certifications for Legionella analysis (NY ELAP, CDC ELITE). We provide exceptional quality and outstanding customer service at competitive prices. Visit www.usmslab.com.