Secondly, we need to understand the phosphorus content in the ultrasonic cleaning machine. Ultrasonic cleaning solution is usually a composite cleaning agent composed of multiple components, with phosphorus being just one of them. The formula of the cleaning agent will be adjusted based on factors such as the characteristics of the cleaning object, cleaning effect requirements, and environmental requirements, so the phosphorus content will vary depending on the specific situation. Generally speaking, the cleaning solution used in ultrasonic cleaning machines has a low phosphorus content, usually below 1%.