The video features a series of images that depict the process of reverse osmosis. The images show a diagram of a reverse osmosis system with a red arrow pointing downwards, indicating the direction of the water flow. The diagram includes a membrane with a label "semipermeable membrane" and a label "higher contaminant concentration" on the left side, and a label "lower contaminant concentration" on the right side. The images are colorful, with blue representing the water, and red and yellow representing the contaminants. The diagram is detailed and informative, providing a clear visual representation of the reverse osmosis process.