Air Deflector Kits from the Aeronautical Accessories brand allow outside air to enter and circulate through the cabin of the helicopter. Deflectors can be easily adjusted to increase or decrease airflow. The Air Deflector Kit is ideal for aircraft with slider windows without air conditioning. It is fabricated from high quality acrylic and can be installed easily on sliding crew and passenger windows. Passenger Air Deflectors are not compatible with Aeronautical Accessories Sliding Doors Kits or Passenger Door Pushout Windows