What is a pipette bulb used for in a science lab?

A pipette bulb is used in a science lab to facilitate the accurate transfer of liquids using a pipette. It creates a vacuum that allows for the controlled aspiration and dispensing of liquid samples, minimizing the risk of spills and contamination. By squeezing and releasing the bulb, users can easily draw liquid into the pipette and release it as needed for precise measurements. This tool is essential for tasks requiring careful liquid handling in various experiments and analyses.