2 Pack Air Purifier for Home Bedroom with H13 True 6.3×6.3×10.2 inch, White
Air purifiers for bedroom less than 50dB white noise at the highest wind speed,with low speed reduce noise levels to a near 25dB. Where is the POWER ADAPTER?. The adapter is inside the machine. Placing the machine bottom up, rotate the bottom cover counterclockwise to unlock it.