Additional Details ------------------------------ Product description: Salin Device Salt Air Purifier for clean and crisp air - Bring the feeling of crisp ocean air into your home and sleep well! The Salin Device is an air purifier/salinizer that's quiet, using forced ionization of the indoor air by salt sublimation. The air is forced through a filter with micro-crystallized deposit of salts, primarily sodium chloride (98% NaCl, 0.5% calcium chloride and magnesium, 0.2 iodine and sulfur) and the air will become rich in salt micro particles and negative ions of salt (salt aerosol). The salt micro crystals are able to penetrate into the lungs for natural relief of respiratory conditions and general health. The Salin Device creates a micro climate of dry aerosol salt therapy in your living space like that found in underground speleotherapy clinics. By continuously filtering the air, the air-purifying system creates a subtle but long standing result of salt aerosols in your living space and modifies the air ionization. Clinical studies show excellent results in various respiratory conditions, chronic diseases, sinusitis, ear infections, snoring, cystic fibrosis, asthma, allergic asthma and over all improvement of air quality. It is recommended to use it mainly at night to ensure a minimal daily exposure time of 8 hours. As much as possible, you should increase the exposure time to the entire day. One device is adequate for the treatment of max. 150 cubic meters room.(about 450 sqft). The salt-air purifier contains halite salt crystals from salt mines. The device has two international awards and is recognized at the 24th European Cystic Fibrosis Conference in Vienna, Austria. 100% Satisfaction Guaranteed. Includes 1 Salin Device and 1 Salt-Filled Filter. Each filter lasts 4-6 months. ** The device does not produce any corrosion effects.