Slides inflate in 6 seconds
Airbus A380 has 16 evacuation slides that are designed to deploy in six seconds as per regulatory requirements. The crew should evacuate the entire 550 passengers in just 90 seconds. 
So how all-16 slides are inflated at the same time in six seconds? They use canisters of compressed carbon dioxide and nitrogen to provide the initial boosting followed by abmbient air. The canister provides only about one-third the volume needed to inflate the slides. The remaining volume is supplied by ambient air, channeled into the slides through aspirators.