With a single press at a time, you can either increase or decrease the level of humidity. This gives you the chance to adjust the level of moisture content to the desired level to fit in with any condition at hand. Press on the Up and Down buttons to either increase or decrease humidity simultaneously by increments of 5%rh ranging from 30% – 80%. Once the required level is set the display will automatically return to show the rooms’ relative humidity. MD-231 Dehumidifier has one of the coolest control panels around. To make sure that the special features of this dehumidifier are made easy to operate it comes with an LED powered digital control panel that makes operations much easier and simpler to perform. The relative humidity level is put on display on the digital control panel with light indicators and signs to guide you while using the control panel. The laundry mode function can be selected via the control panel with a single click of a button. After this function is selected the dehumidifier will automatically sense the level of humidity in the room and automatically start dehumidification. This is an easy way to dry clothes indoors without will little to no charges. The programmable timer is a much-needed feature which allows you to have extended control over the operation of the unit when you are at sleep or not at home. This allows you to let the unit operate for certain hours and automatically switch off once the set time is reached. The dehumidifier has two different speed levels which can be selected via the control panel. Each fan speed has its own particular attribute to contribute to some key operations of the dehumidifier. When a higher fan speed is selected the dehumidification becomes faster and air distribution rate increases. When the lower fan speed is selected the noise level is reduced and less energy is consumed. The built-in child lock facility is one of the most interesting features of this particular dehumidifier. This function ensures the safety of the unit and the environment within the machine while it operates. To initiate the child lock function press on the Up and Down buttons at the same time to activate the child lock. Once it is activated all of the buttons on the control panel will freeze instantly. To deactivate repeat the same procedure.