Final answer:
To clean a horizontal laminar flow hood correctly, wipe from the back to the front using side-to-side motions, avoiding circular motions which can redistribute particles.
Step-by-step explanation:
The proper technique for cleaning a horizontal laminar flow hood is to wipe from back to front using side-to-side motions. This ensures that particles are moved out of the hood and prevents contamination of the sterile field. It is important to avoid circular motions which may redistribute particles rather than removing them.