You have a great car full of amazing safety features and surrounded by many types of airbags, but do you know exactly why you need a variety of airbags to keep you safe? Of course, your car has a driver's airbag that usually deploys from the steering wheel, but what about curtain airbags? Some people may not realize how great of an invention curtain airbags really is. Curtain airbags, also known as side-impact airbags, are safety devices installed in the doors of some cars to help keep you safe in the event of a side impact collision. Curtain airbags generally deploy from the top of the vehicle along the door rails and cover the windows, similar to a curtain. This type of airbag is designed to protect your head if an accident were to occur.