Classroom unit ventilators have been heating, cooling, and ventilating schoolrooms for over half a century. The memory is so deeply imbedded in our national psyche, Norman Rockwell could have painted ...

Engineers retrofitting non-air conditioned schools to variable refrigerant flow (VRF) the last few years have relied on centralized packaged DOAS to comply with ASHRAE 62.1 outdoor air standards.

One day in March, the kids were there. The next day, there was no one. Then on a Saturday in August, a man came into an empty public school in suburban Boston carrying a container of dry ice, trying ...

DALLAS TWP. — Dallas Elementary School will soon begin the process of replacing aging ventilation/heating in classroom units. The Dallas School Board approved a resolution Nov. 9 to allot $75,000 to ...

The C.D.C. is urging communities to reopen schools as quickly as possible, but parents and teachers have raised questions about the quality of ventilation available in public school classrooms to ...