Can I use Tap water in my Humidifier?
According to the Federal government, using tap water in ultrasonic or impeller humidifiers does not lead to serious health risks. However, these humidifiers are known for releasing the minerals in tap water into the air. The minerals in tap water may also increase the development of crusty deposits, or scale, in humidifiers. This deposit or white dust may irritate the consumers using these devises.
Although you may use tap water, if you want to avoid this scale or mineral releases, many seek tap water alternatives. If white dust is a problem or you wish to minimize your exposure to minerals in the tap water, you should either:
Use bottled water labeled “distilled.” While distilled water still contains some mineral content, it will likely contain lower mineral content than most tap water. Distillation is the most effective method for removing minerals from water.
Two additional demineralization processes, deionization and reverse osmosis, remove most of the minerals from water, but are generally less effective than distillation. This water is usually called “Purified” water. Water demineralized by these two processes would be expected to contain a higher mineral content than distilled waters.
(Be aware, however, that not all bottled water is produced using demineralization processes. Bottled waters labeled “spring”, “artesian” or “mineral” have not been treated to remove mineral content.)
Consider using demineralization cartridges, cassettes, or filters if supplied or recommended for use with your humidifier.
Be aware, however, that the ability of these devices to remove minerals may vary widely. Further research is needed to determine how well, and how long, these devices work. Watch for the appearance of “white dust,” which would indicate that minerals are not being removed.
Also, in areas of the country where the mineral content in the tap water is high, using distilled water may be less expensive than cartridges, cassettes, or filters.
You can also use water tablets that will help to ensure that your humidifier emits clean air and works efficiently. Visit FiltersUSA for more information on the humidifier tablets.