Answer:
Explanation:In a horizontal laminar flow hood, the air flows horizontally from the back of the hood to the front. The air is drawn in through a high-efficiency particulate air (HEPA) filter located at the back of the hood and flows in a uniform, parallel manner across the work surface towards the operator or experiment area. This creates a clean and controlled environment by providing a continuous flow of filtered air that helps to minimize the risk of contamination.