There are many types of sprayers produced by hand-held sprayers, but the spray principle is similar. Let's take a look at how the spray principle works.
The first is to use the Bernoulli principle. It uses the principle that the flow rate is inversely proportional to the pressure in the same fluid. The fluid will automatically flow from high pressure to low pressure, and then become a small water droplet that is torn by high-speed air to form a spray. The second is to press water into the thin tube to cause high-speed water flow, and the high-speed water flow breaks into obstacles and then breaks into small water droplets. The third is to use the same kind of charge to repel each other to divide the water into droplets. The fourth type is ultrasonic atomization, which uses a high vibration frequency of ultrasonic waves to form a spray. This is the usual way in hospitals.
The spray principle of the sprayer is the above four, and everyone now understands why the sprayer can spray.