Redcel 1-Person Exercise Chamber Designed for athletes who want the benefits of altitude training without wearing a mask. This single-user chamber creates a controlled hypoxic environment of up to 3,500m simulated altitude, allowing you to train naturally while breathing freely — ideal for endurance work, conditioning, and rehabilitation. With generous internal space and full standing height, the chamber comfortably accommodates treadmills, exercise bikes, or other cardio equipment, making it suitable for both home and professional training environments. Key Features Mask-free altitude training up to 3,500m Suitable for treadmill, bike, or functional cardio training Internal volume: just under 10m³ Requires 2 altitude generators (sold separately) Designed for safe, controlled performance training Dimensions Length: 240 cm Width: 170 cm Height: 240 cm Custom height options available on request. Safety Notice Fire safety precautions must be observed at all times when operating altitude equipment.