Not suitable for: Babies under 1 year, Divers without certification, People over 209 lbs (95 kg), People over 220 lbs (100 kg), People over 309 lbs (140 kg), People over 95 years, People with a cold, People with animal allergies, People with back problems, People with claustrophobia, People with epilepsy, People with food allergies, People with haemophilia, People with heart problems, People with low level of fitness, People with pre-existing medical conditions, People with recent surgeries, People with respiratory issues, Pregnant women