This is a very small device. Ideal for use in the car or at the desk in the office. It can run for several hours before needing a charge and charges via USB. quiet, the noise level is equivalent to that of a high-speed laptop when idling. You turn the device off and on by pressing and holding the top button for 3 seconds. I never thought I would ever see such a small air purifier. I think for this to be most effective it should be in a fixed location and not be moved often. I personally think this could be a great option for those who take taxis or spend a lot of time in a vehicle.
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