Wednesday, March 29, 2017

Product review: VonHaus Compact Portable Air Dehumidifier

VonHaus Dehumidifier is 13" tall and 8.5" wide. Its best feature is that it very quiet because it does not have a compressor, the worst feature is that it is not as effective in removing humidity as a humidifier with a compressor. Both are not surprising and stem from the technology used in this unit.

To see how effective VonHaus dehumidifier is I tested in our basement, where we use a standard 50 Pint dehumidifier which fills its entire bucket in several days. I turned off the large dehumidifier and left VonHaus Dehumidifier there for 60 hours. After 60 hours the reservoir of the unit had a couple of inches of water (see video). I can fill the 67 oz reservoir in 1 week. So it works but removes modest amount of humidity. However it is wisper quiet compared to our large dehumidifier.

VonHaus dehumidifier is quiet and light because it uses thermoelectric method called Peltier. In 1834 Jean Peltier noticed that when electrical current is applied to the junction of two different metals the heat is removed from one of the metals and transferred to the other. This is the main principal of thermoelectric cooling (and known as Peltier effect). The dehumidifier has cooling unit which is constructed from tiny metal cubes made from different metals. As electricity passes through the junctions between the cubes the heat is transferred and a fan vents the heat outside, a small amount of moisture is removed from the air in this process and condensed and this is the water we see in the reservoir of the unit.

For this unit to work, it has to be turn on continuously and it removes a fairly small amount of moisture from the air. It is very quiet, and if you need to remove only a small amount of humidity in a small space it will do the job. If don't expect the same performance as from a humidifier with a compressor you will not have an unpleasant surprise. For a Peltier humidifier to become effective it needs to work for a while, so you might be disappointed if you are looking to use it for short periods of time (like using in a bathroom during showers).

You can find it on Amazon by following this link.

Ali Julia review ★★★☆☆

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