BestAir? Golden Solutions 246 2-in-1 Water Treatment for use in all evaporative type humidifiers. With growing consumer concern over Indoor Air Quality (IAQ) BestAir? is proud to provide you with a reliable high quality source for filters wicks and accessories. BestAir? is dedicated to protecting and providing a clean and safe indoor environment for everyone. Powerful formula aids the control of bacterial and algae build-up while eliminating odors and improves effectiveness and prolongs the life of the humidifier and wick. For use in all wick and filter-type humidifiers to help control mineral and limescale build-up. Keeps water smelling fresh and clean - add 2 teaspoons per gallon of water.