BestAir 3BT-PDQ-6 Original BT Humidifier Bacteriostatic Water Treatment, 32 fl oz, 6 Pack

Powerful formula aids the control of bacterial and algae build up while eliminating odors | Improves effectiveness and prolongs the life of the humidifier and wick; Facilitating maximum humidity into the air | For use in all evaporative type humidifiers | Keeps water smelling fresh and clean - Add up to 2 teaspoons per gallon of water each time the humidifier is filled | Made in the USA; EPA registered