Washes over 1000 times. Microfiber material is very absorbent and efficient at cleaning small particle and debris. Microfiber pad velcros in place. Easy to remove and rinse or machine wash. Eco-friendly, long lasting and sanitary for all applications; ie hospitals, clean rooms, schools, senior care facilities; etc. Easy to use and safe for all floors including: Pergo, Hardwood, Tile etc.