As COVID-19 infections in Hong Kong are growing, community health has become the focus of public attention. The Project Ultra Violite brings together engineers, medical doctors, social workers, and other professionals to develop mature and reliable ultraviolet (UV) disinfection technology and provide free disinfection services for households with relatively crowded living environments. Funded by Hong Kong Jockey Club Charities Trust’s "COVID-19 Emergency Fund", Lingnan Entrepreneurship Initiative of Lingnan University, Department of Social Work and Social Administration of University of Hong Kong, Caritas Youth and Community Service, and Health In Action jointly organize the "Project Ultra Violite" to provide free and efficient UV disinfection services for one thousand sub-divided units, helping to prevent viruses from spreading in the units, and reducing the risks of household infections and community outbreaks. The Project also aims to reduce the anxiety of the residents and help them refocus on taking care of their family and environmental hygiene.