Follow the package directions as to how much oxygen bleach to use per gallon of warm water water. (thespruce.com)
Soak the parts in a solution of one tablespoon bleach and one gallon of warm water for a few minutes, rinse and air dry. (fieryfoodscentral.com)
This humidifier holds up to 3.5 gallons of warm water which will offer up to 24 hours of cool or warm mist, depending on what you want. (earlymomentsmatter.org)