KUALA LUMPUR, Sept 23 — Ventilation system and the good quality of air in all types of buildings such the workplace, business premises, education institution, places of worship and residence are among the important strategy to contain the spread of Covid-19.

PUTRAJAYA, July 13  — The Human Resource Ministry through the Department of Occupational Safety and Health (DOSH) today issued guidance notes on ventilation and indoor air quality (IAQ) to help reduce the risk of airborne transmission of Covid-19.