Designed for use in hospitals and other patient care facilities. With advanced technology, new green clean features and the revolutionary Aqua-stop; This series has been engineered to change the way you clean floors. Anti-microbial recovery tank is hygienic and easy-to-clean. Flow-optimized recovery tanks with Anti-Foam System (AFS) protects the vacuum motor from damage. Kill claim for H Series is Escherichia Coli (E-coli) and Staphyloccocus Aureus (Staph) resulting in greater than 99% bacterial reduction rate. Hospital quiet with anti-microbial recovery tank.