What is the influence of the wind speed in the air shower?

The air velocity and outlet Angle of the air shower have a significant impact on the purification effect, as follows:
The influence of wind speed
Impurity removal capacity: An appropriate wind speed is the key to effectively removing dust and impurities from the surface of people or goods. When the wind speed is too low, the impact force generated by airflow is insufficient, which makes it impossible for dust and other impurities to separate from the surface of objects, resulting in a poor purification effect. For instance, when the wind speed is lower than 20m/s, it may only be able to blow away some larger dust particles, while it is difficult to remove tiny particles and tightly adhering impurities. On the contrary, if the wind speed is too high, although it can enhance the impact force on impurities, it may cause some problems, such as discomfort to people, and may even stir up the already-settled dust again, affecting the purification effect. Generally speaking, when the wind speed of the air shower is between 25m/s and 35m/s, a good balance can be achieved between effectively removing impurities and avoiding adverse effects.
Air circulation efficiency: Wind speed affects the air circulation efficiency in the air shower room. Higher wind speed can accelerate the flow rate of air, enabling the filtered clean air to replace the dusty indoor air more quickly and enhancing the purification efficiency of the air. This can achieve multiple air circulations in a relatively short period, ensuring the cleanliness of the indoor air. However, if the wind speed is too low, it will lead to slow air circulation, prolong the time to achieve the set purification effect, and reduce the utilization efficiency of the air shower.
The influence of the air outlet Angle
Uniformity of coverage: A reasonable air outlet Angle can ensure that the air blown out from the air shower evenly covers the surface of people or goods. If the air outlet Angle is not reasonable, it may result in some areas not being blown out or the blowing intensity being insufficient, creating purification dead zones. For instance, if the nozzle Angle is not set properly, it may result in the back, legs, and other parts of the personnel not being fully blown and rinsed, and certain sides of the goods may also not be effectively purified, thereby affecting the overall purification effect. Typically, the nozzles of an air shower are designed to be distributed at multiple angles to achieve full coverage of the object's surface.
Airflow scouring effect: An appropriate air outlet Angle enables the airflow to scrub the surface of objects at the best Angle, enhancing the stripping effect on dust and impurities. When the airflow is at a certain Angle to the surface of an object, a better shear force can be generated, blowing impurities off the surface. For example, an airflow parallel to or nearly parallel to the surface of an object can more effectively push and carry away dust along the surface, while an airflow perpendicular to the surface can use the impact force to loosen and fall off the adhered impurities. By reasonably setting the air outlet Angle, the airflow can form an effective scouring effect, which can improve the purification efficiency.
To achieve a good purification effect, when designing and using the air shower, it is necessary to reasonably adjust the wind speed and air outlet Angle according to the actual application scenarios and requirements, and ensure that it can reach the expected purification effect through testing and verification.