Spa Partners Sauna protects wood from cracking, swelling and rotting. It removes and prevents perspiration condensate. Our product's natural fragrance oils freshen and deodorize your sauna as well as revitalizing and rejuvenating it. It can be used straight from the bottle for tough jobs or diluted up to 5 to 1 for basic upkeep. Simply spray and wipe. Many cleaning products contain bleach or ammonia which will dry and damage the wood in your sauna. Spa Partner's Sauna uses natural oils to gently clean the wood without drying it out.