A fast-release pump is laboratory equipment used to dispense liquid quickly and precisely. It is typically a handheld device that generates a vacuum by pumping air out of a cylindrical chamber. The vacuum is used to aspirate or draw liquid into the chamber, and the liquid is then dispensed by quickly releasing the vacuum.

Fast-release pumps are commonly used in laboratory settings for tasks such as dispensing reagents, transferring samples, or performing serial dilutions.

They are especially useful for dispensing small volumes of liquids that would be difficult to handle with traditional pipettes. The fast-release mechanism allows for quick and efficient dispensing, reducing the risk of error and contamination.