Walgreens cool mist humidifiers are an ideal way to keep a space's air moist, suppressing allergens from floating through the air. They can also be helpful in aiding respiration. They do require regular cleaning and maintenance, however. Cool mist humidifiers filled with regular tap water may grow mold and/or mildew, and even humidifiers filled with distilled water have to be cleaned on a routine basis. Cleaning a Walgreens humidifier simply means cleaning away the mineral and bacterial deposits that form during use.
Fill a small bowl or bucket with 1 part white vinegar and 3 parts water. Dip a cloth into the mixture and wipe down the entire humidifier. Use the cloth and mixture to clean away any mildew, mold and grime from the cool mist humidifier.
Empty both the Walgreens humidifier's base and water reservoir of water. Turn each upside down to drain completely. Wipe away any remaining water with a clean cloth.
Mix demineralizer with water, following the manufacturer's instructions, in a bottle. This amount will vary depending on the strength of the demineralizer -- generally, this is about 1 to 3 caps full. Shake the bottle to mix and then pour the mixture into both the base and the reservoir. Let soak for about 30 to 45 minutes. This will kill any bacteria and rid the reservoir and base of mineral residue.
Mix more demineralizer with water in a separate bowl, and place the humidifier's filter inside to soak and clean it. Let it soak for approximately 30 to 45 minutes as well.
Rinse the cool mist humidifier thoroughly with distilled water after soaking the base, reservoir and filter. Do not use tap water or bottled spring water, as each have minerals and bacteria. Wipe down with a clean, dry cloth and then fill the reservoir with distilled water.