Plug it into an outlet in a well ventilated area. A built-in heater will warm the crystals allowing them to expand and release the moisture
into the air (do not re-new the unit where you use it). It takes about 12-14 hours to re-new. You can not leave this plugged in continuously, only plug it in when the crystals need to be recharged.

It might be too much moisture for this unit to handle. It would be worth a try if you could hang it between your window and the curtain. If it didn't work for your situation it is completely returnable. You may want to consider a product like our Air Dryer 01-0410.

This wouldn't be able to handle the moisture a bathroom would create. This is more for closet and pantries.

If the indicator dot is blue when you receive it the unit is ready to go. If the indicator dot is pink you need to plug it in until it turns blue.