Air Purifiers as White Noise Machines

Jeff Kaufman explains how air purifiers can be repurposed as white noise machines to help with sleep and focus. He notes that most air purifiers have multiple speed settings, and by keeping the fan on the lowest speed, they can create a constant, soothing sound. Kaufman recommends using an air purifier with a high-quality fan and a low-rpm setting to achieve the best results. He also suggests adding a sound-dampening material, such as a towel or a blanket, to the air purifier to reduce the sound. The article also mentions that some air purifiers, such as the Levoit LV-H132, have a built-in white noise feature, but Kaufman prefers to use a dedicated white noise machine like the Marpac Dohm or the Avantek H01.