. Air press are designed to complete the look of your vehicle, adding subtle style while maintaining the functionality you desire from a side window deflector. Its quick no-drill installation creates a perfectly snug and secure fit. It is also safe for car washes. The vent visor, also referred to as a side window deflector, window shade or rain guard, allows fresh air to naturally circulate through open windows while keeping the rain out. Additionally, the product keeps the sun out of your eyes, enables fresh air circulation to eliminate stale, smoky air and allows you to keep your window cracked while parked, keeping the interior cooler.