LCC design factors include: design temperature and humidity; room air-flow rate (air change rate); hood size and number; face velocity; and climate. Other design parameters include laboratory and office support spaces, and the number of fixed-rate exhaust systems per laboratory. All design factors are subject to review, including climate data, e.g., which meteorological year to choose, and design temperature and humidity, e.g., which indoor and outdoor design temperature levels are appropriate. [Lacey, 1993]
