The ventilation system trainer from JLab Instruments (Product Code: JC-ELA-5451) is an educational tool that allows students to learn about standard ventilation system components like ductwork, filters, heaters/coolers, dampers, and more. The modular system is assembled using industrial parts and has transparent panels so components can be clearly seen. It functions like a basic ventilation system to circulate air rather than fully conditioning it, and requires a water supply and 3-phase power to operate heaters/coolers depending on the selected mode. With added modules, it can also demonstrate room temperature controls.