The best Amazon Prime Day 2019 deals: Day two, the afternoon edition

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The best white noise machine

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MARPAC White Noise Machine

MARPAC White Noise Machine

Amazon has started selling the Marpac white noise machine. As its name suggests, the gadget creates a “white noise” such as a smooth sound of rushing air to cover any disturbing noise you would prefer not to hear, and hopefully help you get to sleep. You can also use this white noise machine to mask private conversation in the doctor’s office, or to improve concentration in noisy locales. The MARPAC White Noise Machine retails for $54.95. [Amazon via RedFerret]