This SealerSales AVN-25 25" Retractable Nozzle Vacuum Sealer is equipped with foot-pedal activated gas-flush. With one touch of the pedal, the AVN-25 flushes out oxygen and moisture using an inert gas of your choice. Then, the automated stainless steel nozzle retracts, and your products are sealed in seconds. Its gas-flush feature can be switched off as well as the vacuum feature, or both can be switched off for sealing only with impulse-heat. This sealer has a 1/4" wide sealing element that delivers a leak-proof seal from sensitive electronics to sterile medical devices, food to biotech applications, aerospace technology to scientific devices. The SealerSales AVN-25 is ideal for electronics, medical, and pharmaceutical applications. External compressor is required (6CFM@100PSI).