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1. Plastic umbrella sauna
Commercial vinyl umbrella is providing. Just enter the bath while piercing the umbrella, became like a sauna sweat come out really. Less the amount of hot water, then think and bathtub to long is not used.
2 Sauna’s face only
Accumulated water in the basin, closer,, cover the towel on that face only makes sauna. Put scented oils drops, etc than it is okay.