PuriflOH Limited provides indoor air purification, water sanitation, and medical sterilization products in Australia. Its free radical generator technology produces a range of reactive oxygen species that includes hydroxyl radical, superoxide radical, oxygen radical, and the ozone molecule. The company was formerly known as Water Resources Group Limited and changed its name to PuriflOH Limited in May 2018. The company was founded in 2007 and is based in South Melbourne, Australia.