Pre-cooling ventilation, not mask prevents COVID-19 spread at workplace-Experts
London, August 12, 2020 (AltAfrica)-Experts from the University of Santo Tomas have urged businesses to use a pre-cooling ventilation system to minimise the spread of COVID-19 pandemic in their respective workplaces
According to Maki Pulido’s report on “24 Oras” on Tuesday, UST infectious diseases specialist Dr. Maria Rhona Bergantin said frequent sanitation, wearing of face masks and shields, and physical distancing are not enough in enclosed workplaces.
“Honestly, when you wear mask, it’s not 100% assurance ” Bergantin said.
To prevent the further spread of the virus in workplaces, UST industry advisory council Engr. Roberto Rosales said ventilation in facilities should operate properly.
Rosales suggested a pre-cooling ventilation system, which will allow new air to enter and exhaust stale air.
He added that several hospitals and hotels and big businesses are already using this ventilation system.
Meanwhile, Rosales discouraged electric fan use in establishments amid the pandemic.
For small business establishments, an exhaust fan was recommended. If it is not available, he suggested opening windows to make the place naturally-ventilated.
“Halimbawa maliit lang ‘yong space mo, for you to create natural ventilation, all you have to do is check mo lang ‘yong opening ng window mo kung 50% siya ng floor space mo then naturally ventilated na ‘yong space,” he said. — Ma. Angelica Garcia/DVM, GMA News