Some scientists are now focusing on tinier particles, the ones that spread more like cigarette smoke. Those are carried by wisps of air and even upward drafts caused by the warmth of our bodies. They can linger in the air for minutes to hours, spreading throughout a room and build up if ventilation is poor.
from Section Page News - Modern Healthcare https://ift.tt/2G7zuDR
via IFTTT
No comments:
Post a Comment