Van Air Systems designs and manufacturers unique products for the treatment of compressed air and natural gas. . Van Air Systems compressed air dryers are an affordable and energy-free solution for preventing moisture condensation and freeze-ups in compressed air lines. Van Air Systems, an industry leader in deliquescent desiccant technology, offers a variety of proven solutions for gas dehydration depending on the application. For removing condensation from pipelines, Van Air offers a full line of deliquescent pipeline dryers for normal operating conditions.