The Shark Steam Pocket Mop S3501 uses the power of steam to sanitize* sealed hard floors. Removes 99.9% of common household bacteria** using just water. It features dual-sided pads for double the cleaning capacity with fewer pad washes - simply flip the mop head to extend your cleaning session. The lightweight design and swivel steering deliver an effortless clean in tight spaces and around furniture. *See sanitization instructions in Owner’s Guide for important details on sanitizing floors. Sanitization studies were conducted under controlled test conditions.**Demonstrated to be effective against Pseudomonas aeruginosa, Staphylococcus aureus, Escherichia coli, Salmonella enterica (typhi), and Klebsiella pneumoniae when used as directed.