Sufficient ventilation is important to ensure that interior air, which is potentially contaminated with COVID-19, is replaced with fresh air regularly.
The greater the number of air exchanges per hour, the quicker contaminated air is flushed out of closed spaces.
The following guidelines are mandatory:
Ensure enough ventilation.
Operate ventilation and air conditioning units as per manufacturer instructions.
Change filters regularly.
Ensure filters are high efficiency.
Ensure an adequate indoor air exchange rate is maintained. The recommendation is 6 per hour for guest rooms and 8 per hour for dining areas.
All windows and doors must be open daily for natural ventilation, whenever possible.