Saunum Air 5 Sauna Heater with Climate EqualizerSaunums patented air blending system draws heat and steam from near the ceiling, mixes it with cooler, more oxygenated air near the floor, then directs more comfortable, breathable steam throughout the room. This equalizes room temperature by more than 60% for a significantly better sauna experience. Youll enjoy longer, more satisfying sauna sessions with more intense sweating. All sauna bathers have experienced the same issue, extreme variance in