Vacuum Pump – Oil Free As – 100 is a Oil Free powered, oil-free pump. With innovative electronic, mechanical technology and human design concept make, compact and light weight, clean and maintenance free, safe and comfortable. AS-100 vacuum pump are driven by Piston, without the need of lubricant, regular oil changes and maintenance; with no oil pollution. AS- 100 vacuum pump are equipped with filter cartridge in air inlet to filter particle and moisture to prolong the life of pump. AS-100 vacuum pump are equipped with vacuum regulator to adjust vacuum. Every motor of AS-100 vacuum pump has a built in thermal protection device to shut off the pump automatically when overheated and then resume working when the temperature cools down