far-infrared sauna ,Traditional Saunas , steam sauna ,inspection,quality control,assurance,testing ,sourcing ,qc checklist

They used a dangerous ceramic tube heater technology to produce far-infrared light.  These heaters posed a safety hazard due to the heating and cooling of the ceramic material, which would develop fine lines and cracks that could turn into cherry-red charcoal.  Only in the last 10 years have the new, safer, Carbon Technology become available which has revolutionized the entire sauna industry.  You will find traditional sauna manufacturers now offer a line of carbon far infrared saunas due to the rapid growth in demand for this technology.   

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