The AMD-035 SuperStar membrane dryer provides ultra-clean and ultra-dry compressed air with the automotive industry in mind. The dryer can be used where refrigerated dryers may be too large or where electricity is not available or desirable. The dryer lowers the dew point by continuously removing water vapor and venting into the surrounding atmosphere. A pre-filtration system incorporates a high-efficiency coalescing filter into the process. An automotive float drain allows for discharge of moisture from the Extractor/Dryer® while preventing any system air loss.