This solar cooling SYSTEM is the perfect Automotive gadget for long trips and extended adventures that may subject your car to extreme heat .Based on our own experience, the Koolatron product is a well-engineered solution for keeping temperatures inside your car down, especially during summer. Even if it's not sweltering outside, passive ventilation ensures the constant movement of air in your car. One minor downside is the need for regular cleaning; however, it is a small inconvenience for all See full review