Passenger trains operating across China's extensive rail network, ranging from traditional long-distance sleeper services to modern high-speed Fuxing and Hexie bullet trains, are fully equipped with onboard restroom facilities. High-speed train sets typically feature a combination of western-style sit-down toilets and traditional Asian squat toilets located between passenger carriages, alongside specialized accessible restrooms designed for passengers with disabilities. These facilities are maintained regularly by onboard cleaning crews throughout the journey to ensure passenger comfort.