Toilet in Space Capsule Mobile House

The toilets in space capsule mobile houses vary significantly in design depending on the type, primarily divided into ground-based and space-based applications.

Ground-based Toilets in Space Capsule Mobile Houses

1. Tech-inspired Space Capsule Mobile Toilets: These toilets feature exterior walls made of low-e tempered glass and aerospace aluminum, offering both thermal insulation and lightweight properties. Their double-door design enhances the tech aesthetic, with illuminated logo signs installed before factory dispatch, suitable for scenic spots, temporary events, and other scenarios.
2. Ceiling-mounted Space Capsule Toilets in Mobile Houses: These toilets adopt a wet-dry separation layout as part of an overall design that includes two bedrooms, one bathroom, and one balcony, accommodating up to four people. The wet-dry separation structure effectively prevents moisture diffusion, improving comfort and suitability for long-term living needs.

Toilets for Space Environment Applications

1. Traditional Toilets on the International Space Station: Designed for microgravity environments, the core feature is a suction toilet system. Solid waste is drawn into storage containers by airflow for subsequent return to Earth for processing; urine is collected and sent to a water recovery system, where it undergoes multi-stage filtration and purification to become potable water. The equipment is equipped with restraint devices (such as foot restraints) to ensure astronaut safety during use in zero gravity.
2. 2020 New Universal Waste Management System (UWMS): Utilizing a 3D-printed titanium alloy fan separator, it reduces weight by 40% and volume by 65%, significantly lowering spacecraft payload. Urine purification combines a urea bioreactor with an electrochemical system, improving recovery efficiency, with treated water meeting potable standards. The system enhances the user experience for female astronauts and features universal interfaces for compatibility with different spacecraft.
3. Orion Spacecraft Failure Case: In April 2026, a toilet developed for the Artemis 2 mission experienced frequent failures due to design flaws, highlighting the reliability challenges of space equipment in extreme environments. This case underscores the need for space toilets to balance functional innovation with long-term stability verification.

Core Differences Between the Two Types of Toilets: Ground-based applications prioritize comfort and scenario adaptability, while space toilets must address complex issues such as microgravity waste processing and resource recycling, posing significantly higher technical challenges.