TA03 Airless Pump Bottle 15ml-50ml for Cosmetics Leak-Proof

The Dispensing Process:
◦ At Rest: The bottle is full, and the piston sits at the bottom of the chamber.
◦ On First Use (Priming): When you press the pump actuator for the first few times, you create a vacuum within the inner chamber.
◦ Vacuum Effect: This vacuum causes the piston to rise upward, pushing the product toward the pump mechanism.
◦ Dispensing: With each subsequent press, the pump draws the product from the chamber and out through the nozzle. The piston moves up precisely to fill the space left by the dispensed product, ensuring no air ever enters the chamber.