The Baby Brezza Bottle Washer PRO powerfully cleans off milk residue with 20 high pressure spray jets that thoroughly wash and rinse bottles, pump parts, sippy cups and accessories inside and out. It goes through 3 rinse cycles to ensure all soap residue is removed, unlike other washers that only rinse twice. The machine also uses natural steam to kill 99.9% of germs, then dries completely with germ-free, HEPA-filtered hot air. The Bottle Washer Pro holds up to 4 bottles, pump parts, sippy cups and accessories from virtually all brands, including plastic, silicone and glass bottles. It offers 6 functions and is clinically proven to clean significantly more effectively than bottle brushes. It has removable clean and dirty water tanks instead of a messy drain hose, so it doesn't require a sink hook up, and can be used anywhere in your kitchen or around the house - even in the nursery or bedroom! This all-in-one cleaning machine is eco-friendly and uses 85% less water than handwashing.