Optimal hygiene: the hygiene tabs from Stadler Form ensure perfect water hygiene in the humidifier or air washer Easy to use: simply put a hygiene tab in the water tank or water container of the humidifier or air washer every two weeks and fill with water Biodegradable: the hygiene tabs are biodegradable and decompose naturally without leaving harmful residues Gentle on materials and odour-neutral: the specially developed hygiene tabs for humidifiers and air washers dissolve in the water without leaving any residue and immediately unfold their effect – gentle on materials and odourless Box contents: 1 x pack of 10 hygiene tabs from Stadler Form, Weight: 0.03527396192 pounds, Manufacturer: Stadler Form