In this video, a man is seen underwater in a pool. He is wearing a scuba mask and holding a breathing apparatus. The man is also wearing a life vest and is sitting on the bottom of the pool. Another person, who is also underwater, is holding a green tube and is instructing the man on how to use the breathing apparatus. The man is seen taking deep breaths and blowing air out of his nose. The water in the pool is clear, and the light from the surface is shining through, creating a beautiful underwater scene. The man appears to be learning how to use the breathing apparatus, and the other person is guiding him through the process.