Says face masks could also serve as protection against air pollution   (Eagle News) — The Metropolitan Manila Development Auhthority (MMDA) has encouraged its field personnel to continue wearing face masks outdoors and in open spaces amid the new policy for optional wearing of face masks outdoors. Because of traffic-related pollution that affects the health of its traffic personnel and street sweepers, MMDA Acting Chairman Engr. Carlo Dimayuga III said that the wearing of face […]