Training Cloud Altitude System

Training Cloud | Altitude Training Tent for Indoor Workouts

Train in a controlled simulated-altitude environment without leaving home.

The Box Altitude Training Cloud is a full-height hypoxic training enclosure designed around treadmills, indoor bikes, rowing machines, SkiErgs and other indoor training equipment. It allows athletes, coaches and performance facilities to add controlled simulated-altitude exposure to normal indoor training.

Controlled simulated-altitude training

The Training Cloud reduces the oxygen concentration inside the enclosure to reproduce the reduced-oxygen environment associated with altitude. Athletes and coaches can adjust target altitude, exercise intensity and exposure duration to suit the purpose of the session.

Common applications include:

• Aerobic and endurance conditioning
• Repeated-sprint and interval sessions in hypoxia
• Preparation for training or competition at altitude
• Pre-acclimatisation before travel to elevation
• Adding a controlled environmental stimulus to indoor training

Research on exercise in hypoxia shows that the physiological and performance response depends on the protocol, altitude, training status and individual athlete. The Training Cloud provides the environment; the training outcome depends on how that environment is programmed and used.

Compatible with indoor training equipment

The spacious four-poster altitude training tent accommodates a wide range of equipment, including:

• Indoor bikes and smart trainers
• Treadmills
• Rowing machines and Ergs
• SkiErgs
• Strength and conditioning equipment

The enclosure measures 2.6 m long × 1.3 m wide × 2.3 m high, providing enough height and working space for most indoor endurance-training setups. Check equipment dimensions and required clearance before installation.

App-controlled altitude with continuous oxygen monitoring

Choose your target altitude through the Box Altitude App®. The Box Altitude Sensor® continuously measures oxygen concentration inside the Training Cloud and communicates with the altitude generator to help maintain the selected environment.

The Training Cloud is configured for simulated-altitude settings up to 4,000 metres / 13,123 feet. This is the operating range of the Training Cloud system and should not be confused with the lower oxygen concentration that an F10 or F20 generator can produce at its outlet under specification testing.

Choose your altitude generator

The Training Cloud is available with either the F10 or F20 Altitude Generator®.

• F10: up to 120 L/min at 14% O₂ under the 2026 generator specification.
• F20: up to 240 L/min at 14% O₂ under the 2026 generator specification.

The higher-output F20 can reduce the oxygen concentration more quickly and recover the target environment faster after the enclosure has been opened. Our team can help select the appropriate generator for your equipment, session type and intended use.

Training Cloud system components

• Training Cloud full-height hypoxic training enclosure
• F10 or F20 Altitude Generator®
• Box Altitude Sensor®
• Box Altitude App® for iOS and Android

Key features

• Simulated-altitude training at home or in a performance facility
• Smartphone altitude control
• Continuous environmental oxygen monitoring
• Progressive altitude adjustment
• Full-height enclosure for treadmills, bikes, rowers and other equipment
• Training Cloud system settings up to 4,000 metres / 13,123 feet
• Available in 110–120 V and 220–240 V configurations

Connect your altitude training with Oxygen Coach

Oxygen Coach helps athletes and coaches review altitude exposure alongside available physiological and training data including SpO₂, heart rate, HRV, sleep, training load and blood-marker information such as iron status.

Tracking exposure alongside response data can help athletes and coaches understand how an individual is responding over time.

Explore Oxygen Coach

Download Oxygen Coach on the App Store

How high should you train?

There is no single altitude that is optimal for every workout or every athlete. Appropriate settings depend on training experience, session intensity, duration, previous altitude exposure, individual response and the goal of the session.

Begin conservatively, reduce normal sea-level intensity where appropriate, and increase exposure progressively as experience and tolerance develop.

Stop exercising if you experience unusual dizziness, chest discomfort or other concerning symptoms. People with medical conditions or concerns about exercising in reduced oxygen should seek advice from an appropriately qualified healthcare professional before commencing hypoxic training.