Designed for high efficiency removal of moisture, resulting in cool, clean and dry compressed air for use in abrasive blasting equipment. If your blasting operation or jobsite is in a region where there is not a big difference in the daily high and low temperatures, an aftercooler may be sufficient to handle the moisture in your blast system. Note: sodium bicarbonate (baking soda) applications most often require the additional drying capabilities of an air dryer for best performance.