MOST COMPATIBLE: Universal for 22mm and 15mm of most CPAPs/ Bi-PAP,two adapters and premium sanitizer bag included. MORE EFFECTIVE-Eliminates 99.9% of pathogens in your hose, mask and CPAP device & reservoir only in 25 minutes. CERTIFIED SAFETY: It’s FCC certified, FDA registered and independently lab tested. Safely and naturally with no water or messy chemicals needed. In addition, vinmax guarantees that ozone output does not cause any harm to health. MAINTENANCE FREE: Requires NO maintenance like other devices. Requires no soap, water, cleaning solutions or on-going maintenance. WHAT YOU GET: 1x CPAP Cleaning device ,1x USB cable, 1x Power Adapter??User Manual, Manufacturer Warranty and Friendly Customer Service.