Abstract: A vehicle including a cab having a frame with at least two support posts each including an airflow path therein and an airflow system supported by the cab and configured for increasing an airflow into the cab and decreasing a power consumption of the cab. The airflow system includes at least one air intake opening in the cab configured for intaking a fresh air, an air filter fluidly coupled to the at least one air intake opening, and an air outlet within the cab and fluidly coupled with the air filter. The fresh air flows into the at least one air intake opening, through each respective airflow path of the at least two support posts, is filtered by the air filter, and flows out through the air outlet into the cab.