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? Does it matter if I purchase a dehumidifier that's too small? Will a dehumidifier make our rooms warmer in summer? What is relative humidity and what level should it be? Ausclimate dehumidifier user manuals