Relax Sauna Far Infrared Long Term Health Benefits, highest far Infrared Sauna Experience Available. Utilizing Patented far Infrared Technology. Saunas are a personal care item and are NOT RETURNABLE. However, in the unlikely event there is a manufacturer’s defect, the manufacturer will quickly provide repair or replacement at no cost to you. The Relax Sauna ships worldwide, except Germany, China, Sweden, Japan, Southeast Asia or Poland. Free Continental US Shipping, direct from manufacturers warehouse.