How to clean your 3-in-1 humidifier- disconnect and turn off your humidifier. Gently remove the base and set aside. Tank- fill the tank with 1 cup of water and add 1 cup of bleach, undiluted white vinegar. Tank- screw cap back on and let sit for approximately 20 minutes. Tank- after the 20 minutes remove any residue or build-up by gently shaking the mixture back and forth. Base- pour a generous amount of undiluted white vinegar into the base of your cool mist humidifier. Base- let sit for 20 minutes. Do not submerge the base into water. Base- after the 20 minutes remove any residue or build-up by gently scrubbing by using a soft bristle brush, soft cloth. Do not scrub or scrape the transducer. Rinse thoroughly. If there is a leftover bleach, undiluted white vinegar smell rinse thoroughly using 1 tbsp of hydrogen peroxide and 1 cup of water. Gently spot clean your 360 degree mister and dry all components before placing them back together. Clean your humidifier at least once per week. If you are going to store your humidifier for any length of time, be sure to thoroughly clean and dry the unit before storing. If you are using a humidifier after storing it for any length of time, thoroughly clean it before use.