No, this all depends on the customer’s requirements as well as the premises that the customer is using. If the room that the units are placed in is well ventilated then it is often not required. However, some products, like pet treats, can produce an unpleasant smell during the drying process making installing a ventilation exhaust more desirable. For specific requirements regarding your premises, give us a call or send us an email and we will connect you with one of our industrial experts.