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Why a 2-Gallon Humidifier Does Not Hold That Amount of Water

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Question: Why a 2-Gallon Humidifier Does Not Hold That Amount of Water

Why does a portable humidifier not hold the same amount of water. Example: A 2 gallon humidifier does not hold 2 gallons of water in its reservoir. Why is there a difference?

Answer: Portable humidifiers are sold in 1, 2 or 3 gallon(or more) sizes. This capacity does not refer to the size of the water reservoir or tank. In fact, water tanks are usually much smaller.

It actually refers to the amount of daily humidity output. In other words, a 2-gallon humidifier will expel approximately 2 gallons of moisture to the room each day. Since the water reservoir will be smaller, in order to provide continuous humidification to a room over a 24-hour period, you would have to refill the water tank at some point during that period. Output is measured using average testing data and the actual output will vary depending on what setting you use (quiet, low, or high). The higher the setting, the more quickly the water tank will empty.

When choosing a humidifier, consider portability and ease of use. Large water reservoirs are more difficult to handle, but you'll have to fill it less often. Also consider the recommended room or area coverage which is usually included in the product information.

Read More About Humidifiers:

Humidifier Buying Tips
Whole House vs Portable Humidifiers
How to Change a Humidifier Wick Filter
Humidifier Seasonal Maintenance
How Long Should Humidifier Filters Last?
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