General airflow through the laboratory space is a design element that safety is often asked to comment on. With the growing awareness of energy conservation for both sustainability efforts and costs savings, labs are being asked “how low can you go” when it comes to air changes per hour (ACH). The general heating, ventilation and cooling (HVAC) controls for the laboratory space can often be manipulated for efficient air supply that provides both occupant comfort and some degree of safety. When determining what the proper air flow should be, several factors must be considered in conjunction with ACH.
In offices, a percentage of the air supplied to the space can be recirculated from the same space, which saves on heating and cooling costs. All laboratory air is single pass, which means that it is 100% supplied fresh air from the outside. This is good news for lab occupants, as the air circulating in the space is all fresh, but not good news for […]