What size dehumidifier do I need? 27 March 2023 02:52 Updated Watch our video below to assist with purchasing the right sized dehumidifier for your space. Related articles Which dehumidifier is best for me? How long should I run my dehumidifier for? How to set up and use your Ausclimate premium 10L desiccant dehumidifier What is relative humidity and what level should it be? Where can I purchase replacement filters?