Hold the Sleep button for 5 seconds while the power is on to shut off the reset button.
Press the function button once amd the ion function will be turned off.
Press the function button a second time both UV and ION will both be activated.
Press the function button a third time just the UV will remain on.
Press the function button a fourth time only the ion function will be on.
Auto mode controls fan speed based on quality of air.
Auto mode will change colors on the out rim from red, purple, blue depending on quality of air
Only way to completely turn off LED lights is to unplugged the unit.
Sleep Mode with shut down must lights and run unit on lowest setting with just small bit of light from sleep function button.