BestAir? Golden Solutions 246 2-in-1 Water Treatment/Cleaner 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 inhibits the growth of bacteria while helping to control mineral & lime scale build-up. The 246 optimizes humidifier performance. For use in all wick and filter-type humidifiers. Not for use in vaporizer ultrasonics. Add 2 teaspoons (approx. 2 capfuls) per gallon of water. 4.35 lb.