How to Reduce Contaminants in Cleanrooms through Air Showers

Cleanrooms are highly controlled environments designed to minimize the presence of airborne particles, microorganisms, and harmful gases, ensuring product quality and the smooth progression of production processes. Among the various components of a cleanroom, air showers play a crucial role. Air showers use high-speed airflow to remove contaminants from the surfaces of personnel and items entering the clean area, thereby reducing the contaminants entering the cleanroom and helping maintain the cleanliness of the environment. This article discusses how air showers can help reduce contaminants within cleanrooms.

1. The Basic Function and Role of Air Showers
The primary function of an air shower is to remove dust, particles, and other contaminants from the surfaces of personnel and items entering the cleanroom through high-speed airflow. Specifically, the high-efficiency air in the air shower passes through multiple high-efficiency filters (such as HEPA or ULPA filters) and then blows at high speed towards the surface of personnel or items passing through, removing contaminants and significantly reducing the sources of pollution entering the cleanroom.

2. Controlling Personnel Contaminants with Air Showers
Personnel are one of the major sources of contamination in cleanrooms. As personnel enter the cleanroom, their clothing, skin, and breath can carry a large amount of particles, skin flakes, hair, bacteria, and other contaminants, especially in frequent entry situations. Air showers effectively help remove most of the contaminants attached to personnel before they enter the cleanroom.

Multiple Air Shower Cycles and Airflow Design: Air showers are usually equipped with multiple nozzles and air vents to ensure that airflow covers the entire body surface, especially areas where contaminants tend to accumulate, such as shoes, clothing, and hands. Multiple air shower cycles and efficient airflow designs ensure thorough removal of contaminants.

Timed and Efficient Airspeed Control: The airflow speed of the air shower should be adjusted based on the cleanroom’s requirements. Too low airflow will fail to remove contaminants, while too high airflow could lead to energy waste. Proper airflow control ensures high contaminant removal efficiency while minimizing energy consumption.

Personnel Garment Management: Air showers, combined with strict garment management measures, require personnel to wear cleanroom-specific garments, shoe covers, gloves, etc., and pass through the air shower to cleanse the surface of their clothing before entering the cleanroom. This further reduces the risk of contamination brought in by personnel.

3. Controlling Item Contaminants with Air Showers
In addition to personnel, items are also a common source of contamination when entering the cleanroom. Equipment, tools, raw materials, etc., may carry significant amounts of dust and microorganisms when brought into the cleanroom. Through air showers, the contaminants on the surfaces of items can be effectively removed, reducing the risk of contamination when items enter the cleanroom.

Item Air Shower Treatment: Air showers can be designed with dedicated conveyor belts or item channels according to the size and shape of the items, ensuring that each item undergoes thorough air shower treatment. With efficient airflow and precise air direction, the air shower can thoroughly remove dust and particles from the surface of the items.

Dedicated Air Shower Design: For different types of items (such as large equipment, packaging materials, etc.), the design of the air shower should consider different airflow and speed requirements to ensure that each type of item is adequately cleaned before entering the cleanroom. Targeted design can prevent large items from not being properly decontaminated by air showers, reducing the potential for contamination in the cleanroom.

Cleanrooms are highly controlled environments designed to minimize the presence of airborne particles, microorganisms, and harmful gases, ensuring product quality and the smooth progression of production processes. Among the various components of a cleanroom, air showers play a crucial role. Air showers use high-speed airflow to remove contaminants from the surfaces of personnel and items entering the clean area, thereby reducing the contaminants entering the cleanroom and helping maintain the cleanliness of the environment. This article discusses how air showers can help reduce contaminants within cleanrooms.

1. The Basic Function and Role of Air Showers
The primary function of an air shower is to remove dust, particles, and other contaminants from the surfaces of personnel and items entering the cleanroom through high-speed airflow. Specifically, the high-efficiency air in the air shower passes through multiple high-efficiency filters (such as HEPA or ULPA filters) and then blows at high speed towards the surface of personnel or items passing through, removing contaminants and significantly reducing the sources of pollution entering the cleanroom.

2. Controlling Personnel Contaminants with Air Showers
Personnel are one of the major sources of contamination in cleanrooms. As personnel enter the cleanroom, their clothing, skin, and breath can carry a large amount of particles, skin flakes, hair, bacteria, and other contaminants, especially in frequent entry situations. Air showers effectively help remove most of the contaminants attached to personnel before they enter the cleanroom.

Multiple Air Shower Cycles and Airflow Design: Air showers are usually equipped with multiple nozzles and air vents to ensure that airflow covers the entire body surface, especially areas where contaminants tend to accumulate, such as shoes, clothing, and hands. Multiple air shower cycles and efficient airflow designs ensure thorough removal of contaminants.

Timed and Efficient Airspeed Control: The airflow speed of the air shower should be adjusted based on the cleanroom’s requirements. Too low airflow will fail to remove contaminants, while too high airflow could lead to energy waste. Proper airflow control ensures high contaminant removal efficiency while minimizing energy consumption.

Personnel Garment Management: Air showers, combined with strict garment management measures, require personnel to wear cleanroom-specific garments, shoe covers, gloves, etc., and pass through the air shower to cleanse the surface of their clothing before entering the cleanroom. This further reduces the risk of contamination brought in by personnel.

3. Controlling Item Contaminants with Air Showers
In addition to personnel, items are also a common source of contamination when entering the cleanroom. Equipment, tools, raw materials, etc., may carry significant amounts of dust and microorganisms when brought into the cleanroom. Through air showers, the contaminants on the surfaces of items can be effectively removed, reducing the risk of contamination when items enter the cleanroom.

Item Air Shower Treatment: Air showers can be designed with dedicated conveyor belts or item channels according to the size and shape of the items, ensuring that each item undergoes thorough air shower treatment. With efficient airflow and precise air direction, the air shower can thoroughly remove dust and particles from the surface of the items.

Dedicated Air Shower Design: For different types of items (such as large equipment, packaging materials, etc.), the design of the air shower should consider different airflow and speed requirements to ensure that each type of item is adequately cleaned before entering the cleanroom. Targeted design can prevent large items from not being properly decontaminated by air showers, reducing the potential for contamination in the cleanroom.