The hydrogen inhalation machine features dual-port and offers three modes of output: H2/O2/ H2+O2, allowing 1-2 people to use it simultaneously. It operates with low noise, ensuring it won't disturb your rest. This machine can be used with a hydrogen dissolving rod to produce high-concentration hydrogen-rich water. The simple button operation and real-time status display make it easy to use the hydrogen gas inhaler effortlessly. It weight just 29.3 lbs and comes with rolling wheels for convenient indoor movement.