Dohm Classic Sound Machine

The Dohm Classic is made by Yogasleep, a company formerly known as Marpac, which has been producing the device since the 1960s. The company is based in the United States and the Dohm remains one of the best-selling white noise machines in the country.

Unlike most modern sound machines that loop digital audio files, the Dohm Classic generates its white noise mechanically using an actual internal fan with an asymmetrically shaped housing. This produces a natural, non-repeating sound that many users find more effective and less fatiguing than digitized alternatives.

Yes, the Dohm Classic offers two speed settings (high and low) and adjustable tone through rotating collars that open or close the acoustic vents around the housing. These simple mechanical controls let you tailor both the pitch and volume of the white noise to your environment.

At its highest setting the Dohm Classic produces sound in the range of roughly 50 to 60 decibels depending on proximity and vent position. This is comparable to the volume of a normal conversation, which is sufficient to mask most household noises like footsteps, voices, and traffic.