
4 People Hemlock 180*150*190 Cm House IR Sauna Room 3. FSC-Certified Hemlock Wood: Premium solid wood construction, eco-friendly, hypoallergenic, and naturally resistant to moisture. Carbon Crystal Far-Infrared Heaters: High thermal efficiency with even heat distribution and ultra-low EMF emission for deep tissue penetration. Smart Digital Control & Bluetooth: Integrated multi-function touch panel with high-fidelity Bluetooth stereo speakers for entertainment. Quick-Fit Modular Design: Tongue-and-groove panel system with buckle assembly for easy 2-person installation in under 30 minutes. Strict Safety & Energy Efficiency: Explosion-proof 6mm tempered glass door with overheat auto-shutoff protection and low energy consumption. 304 Stainless Steel Handles: Marine-grade stainless steel handles and hinges resist rust and corrosion under constant heat and humidity. Full OEM/ODM Customization: Flexible customization on dimensions, wood species, heater arrays, voltage, and brand logo/packaging. Comprehensive Certifications: Passed EU CE, ETL, SAA, RCM, PSE, KTL, COC, ROHS, and ISO14001 environmental protection certifications.