This unit is capable of generating a range of sound between 50 – 75 decibels, which is the equivalent of moderate rainfall to traffic noise.
Turning the top of the machine creates a similar effect, although the change in sound is not nearly as dramatic. Once turned on, the slide adjustments allow you to tune the machine to achieve the desired level of sound.Īs you turn the shell clockwise, the opening in which air flows becomes smaller and the sound becomes more muffled. The high-low settings allow you to adjust the noise level or volume of the unit by increasing the speed of the fan. The sound of white noise is generated by a fan that’s controlled by this switch. Controlling the DOHM ClassicĪ toggle switch allows you to adjust the fan speed between “Off” “High” and “Low”. The motor inside seems to be of good quality.īecause of the simple design, there are fewer parts that can break which means you should be able to enjoy it for many years before having to replace it. The fan blades are folded down at a sharp angle which draws air in from the top and forces it downward. A power cord runs to a switch and then to a motor which has a metal fan attached to it. Do not attempt this at home.Īs suspected, there’s really not much to this unit. Please note, opening the unit will void your warranty and puts you at risk for injury or death. Your curiosity might have you wondering exactly what’s inside the Dohm. The Dohm comes with a one-year factory warranty which covers parts and workmanship. in Wilmington, NC and is signed by the factory worker who assembled it. The unit plugs into a standard US 120v wall outlet and uses just 18 watts of power which is about the equivalent of one LED light bulb.Įach unit is made in the U.S. This compact unit measures only 5.8″ around by 3.2″ tall which takes up very little space. The DOHM classic is available in three different colors including black, white, and tan. I had the opportunity to review one of their most popular models, the DOHM Classic, which is part of their natural sound machine collection. There are a total of eight different models to choose from. Today, Marpac offers four different types of sound machines including natural sound, multi-sound, baby, and travel. The sound conditioner that is sold by Marpac today operates using the same basic design as years past with a few minor changes to its appearance. As you may have guessed, this eventually evolved into the creation of Marpac.
#DOHM ELITE WHITE NOISE MACHINE GENERATOR#
Soon enough, friends and family began asking Jim if he could build a white noise generator for them as well. Working in his garage using a few components such as a motorized fan and bowl, he created what would later become the very first white noise machine. After giving it some thought, the couple theorized that the soothing sound of the hotel air conditioner was the reason behind Trudy’s improvement in sleep.Īfter realizing this, Jim decided to build a machine that replicated the sound produced by the hotel air conditioner. The idea originated when Jim noticed that his wife, Trudy, seemed to sleep better while traveling and staying the night in a hotel room. In 1962, Jim Buckwalter created a white noise machine to help his wife who suffered from insomnia.
#DOHM ELITE WHITE NOISE MACHINE FREE#
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