A Mist Pump is a plastic bottle that can artificially create mist. To put it simply, the high-pressure system sprays the liquid with very fine water particles. These tiny artificial mist particles can drift for a long time and are suspended in the air to form a white misty spectacle, much like the effect of natural mist, called spray. A spray is a mixture of tiny particles suspended in a gas (such as air). These particles may be very small drops of water or paint.
In the Mist Pump, liquid and gas can be ejected as tiny particles are stored under pressure. In the past, people put a gas called chlorofluorocarbons in aerosol cans, but we now know that this gas is harmful to the environment. Now the spray bottle has begun to use other kinds of gas. However, the manual spray bottle is still the best, because it not only has the function of spraying but also uses the principle of air to spray liquid, which will not cause harm to the environment.