This is a controlled negatively-pressurized room designed for COVID-19 positive individuals with mild to moderate level of symptoms, hence, with less viral shedding often characterized by occasional coughing and sneezing. These rooms can also be retrofitted into hospital wards to convert normal beds into temporary isolation rooms with optional anterooms. These hospital wards can be returned to normal wards after COVID-19 pandemic. Rooms are recommended to be disinfected on a daily basis and must be maintained at negative pressure (-10 to -20Pa) to ambient environment.