The two-phase flow demister is a new generation energy-saving and environmentally friendly product developed based on "two-phase flow theory" and "fluid control theory." During the operation of thermal power units, to enhance the efficiency of the steam system and ensure the safe and economic operation of steam equipment, it is essential to maximize the quality of the steam. However, condensate and air are often present in actual steam systems, affecting the efficiency and safety of the system. We should strive to regularly and promptly remove condensate and air (including other non-condensable gases) from the steam, tapping into the potential of existing equipment, and achieving the goal of energy conservation and efficiency improvement.