Product Blog

Cryosaunas are used in wellness and recovery settings to deliver very cold air for short sessions. Two main technologies are common today: electric cryosaunas and nitrogen-cooled cryosaunas. While both aim to create a similar user experience—brief, controlled cold exposure—the way they generate and manage cold is different. This guide explains how each system works, key pros and cons, and what to consider when choosing between them. How Each System Works Nitrogen-Cooled Cryosauna These systems use liquid nitrogen (LN2) that expands into cold gas. The cold nitrogen gas is introduced into the cabin to reduce air temperature rapidly. The cabin is typically open at the top with the user’s head outside, and the operator controls flow and exposure time. Electric Cryosauna Electric models use high-performance refrigeration compressors and heat exchangers to chill air mechanically—no cryogen is required. They operate like an industrial-grade freezer system designed for rapid pull-down and stable, repeatable temperatures throughout the session. Operating Temperatures & Session Profile Target temperatures: Both technologies aim for very low air temperatures in the cabin. The exact figures vary by manufacturer and model. Duration: Typical sessions are short (often around 2–3 minutes), with pre-cooling time managed by the machine. Stability: Electric units focus on repeatable mechanical cooling; nitrogen units can deliver rapid cold via gas expansion. Installation & Site Requirements Nitrogen-Cooled Supply: Requires a reliable liquid nitrogen supply and safe storage of LN2 tanks or a dewar. Ventilation: Must follow ventilation and oxygen monitoring best practices due to nitrogen displacing oxygen in enclosed spaces. Footprint: Cabin, storage area for LN2, and a service zone for tank changeovers. Electric Power: Requires sufficient electrical capacity per the manufacturer’s spec (often 3-phase). Ventilation: Generally simpler ventilation needs, though room airflow and heat rejection should be considered. Footprint: Main unit plus space for service access; no cryogen storage needed. Operational Considerations Nitrogen-Cooled Running costs: Ongoing LN2 deliveries factor into cost per session. Logistics: Requires scheduling deliveries and managing inventory of cryogen. Training: Staff should be trained on safe handling of LN2 and oxygen-safety practices. Electric Running costs: Primarily electricity and routine mechanical maintenance. Consistency: Emphasis on programmable, repeatable sessions. Uptime: Preventive maintenance on compressors and refrigeration components is important. User Experience & Workflow Session feel: Both approaches create intense cold exposure for a short, controlled duration. Turnover: Pre-cooling and recovery times impact how many sessions you can run per hour; check the specific model’s cycle time. Staffing: Many operators oversee sessions, handle intake questions, and ensure user comfort and safety protocols are followed. Safety & Compliance Screening: A basic pre-session checklist is common in professional settings to ensure suitability and comfort. Instructions: Users typically wear protective items (e.g., dry socks, gloves) and remove moisture before sessions. Environment: Follow the manufacturer’s location, ventilation, and monitoring guidance for the chosen system. Pros & Cons at a Glance Nitrogen-Cooled Pros: Rapid pull-down via LN2 gas; does not rely on high electrical capacity; commonly used in open-top cabins. Cons: Requires cryogen logistics and ventilation planning; ongoing LN2 cost; staff training for handling LN2. Electric Pros: No cryogen supply; predictable, programmable cooling; simplified inventory logistics. Cons: Higher electrical requirements; adherence to preventive maintenance on refrigeration components. Quick Comparison Aspect Nitrogen-Cooled Cryosauna Electric Cryosauna Cooling Method Liquid nitrogen expands to cold gas Mechanical refrigeration (compressors) Site Needs LN2 storage, ventilation, O2 monitoring Adequate power, room airflow/heat rejection Running Costs LN2 deliveries and handling Electricity and routine maintenance Logistics Tank changeovers, delivery scheduling No cryogen supply chain required Session Control Operator-managed nitrogen flow & timing Programmable profiles; repeatable sessions Which One Should You Choose? Your best choice depends on location, utilities, staffing, and operational goals. If you prefer to avoid cryogen logistics, an electric unit may fit better. If electrical capacity is limited but you can manage LN2 safely, a nitrogen-cooled unit can be effective. Always review the exact specifications and site requirements of the model you’re considering. Important Notes Cryosaunas are intended for general wellness and recovery support. They are not medical devices unless clearly stated and are not intended to diagnose, treat, cure, or prevent any disease. Users should follow manufacturer instructions and consult a professional if they have health concerns or specific conditions.