The product of "negative ion ecological liquid" (also called "negative ion beauty liquid") has the functions of decomposing formaldehyde, removing odor, releasing a large number of negative ions, and purifying the air. It has obvious conditioning effect on respiratory system. The use method is also very simple. If the nozzle is aimed at smelly air, objects with formaldehyde, walls, cars, indoors, etc. , has been widely used in indoor, automobile and other places. The negative ion health care paint of Hongyan coating releases a large number of negative ions, and you can check in immediately after brushing.