What are the use standards for air showers?

A clean room is a professional environment used to ensure product quality and personnel health and safety in the production, scientific research, and medical industries. In this environment, personnel must enter and exit the clean room through the air shower according to the prescribed standards to ensure the cleanliness of the clean room and reduce the presence of pollution sources. However, in the process of using the air shower, how to ensure personnel safety is also a crucial link. The following will elaborate on the measures to ensure the safety of cleanroom personnel when using the air shower from the aspects of equipment operation, personnel behavior norms, equipment maintenance, and emergency handling:
I. Correct operation of the air shower
1. Preparation before entering
Wearing specifications: Before entering the air shower, all personnel must strictly follow the clean room management regulations, wear clean clothes, clean shoes, masks, gloves, and other protective equipment, and ensure that there is no direct exposure to the body to prevent pollutants from entering the clean room.
Check personal belongings: Before entering the air shower, personal belongings (such as mobile phones, keys, wallets, etc.) should be stored in designated areas to avoid bringing them into the clean room. If necessary, the air shower room's dedicated item delivery window can be used for item delivery.
Confirm the status of the air shower room: Before entering the air shower room, you should confirm whether the door of the air shower room is tightly closed and whether the indicator light shows that it is accessible. It is forbidden to forcefully open the door of the air shower room in operation.
2. Operation after entering the air shower room
Standing position: After entering the air shower room, personnel should stand in the designated position, usually the center of the air shower room, and avoid standing directly under the nozzle or close to the wall to prevent uneven air flow or accidental injury by the nozzle.
Correct posture: Personnel should raise their hands, keep a certain distance from the body, and stand in a "big" shape with their legs slightly apart so that the airflow can fully blow all parts of the body.
Do not touch the equipment: During the air shower process, it is forbidden to touch any equipment in the air shower room, including the nozzle, control panel, etc., to prevent equipment damage or personal injury.
3. Leave the air shower room
Wait for the shower to end: The air shower time is generally 15-30 seconds, and the specific time should be implemented according to the clean room management regulations. During the air shower process, personnel should remain still and wait for the shower to end.
Leave in an orderly manner: After the shower, personnel should leave the air shower room in an orderly manner to avoid crowding and pushing. When leaving, pay attention to the safety of your feet and avoid tripping over the threshold.
2. Personnel behavior norms
1. Comply with the clean room management regulations
All personnel entering the clean room must be trained, familiar with the clean room management regulations and air shower room operating procedures, and strictly abide by them.
It is prohibited to play, chase, and run in the air shower room to avoid accidents.
2. Avoid carrying pollutants
Before entering the clean room, personnel should ensure that their bodies and clothes are clean and avoid carrying pollutants into the clean room.
It is prohibited to eat, drink, smoke, or engage in other activities that may cause pollution in the clean room.
3. Pay attention to your health
Before entering the clean room, personnel should pay attention to their health. If they have infectious diseases such as colds and skin diseases, they should avoid entering the clean room to avoid polluting the clean environment.
3. Equipment maintenance and inspection
1. Regular maintenance
Regularly maintain the air shower room, including cleaning the filter, checking the operation of the fan, detecting the airflow speed, etc., to ensure that the air shower room is in good working condition.
Regularly check the electrical system and safety devices of the air shower room to ensure the safety and reliability of the equipment.
2. Fault handling
If the air shower room is found to have a fault or abnormal situation, it should be stopped immediately and a professional person should be notified for inspection and repair.
It is forbidden to dismantle or repair the air shower room without authorization to avoid equipment damage or personal injury.
IV. Emergency handling
1. Emergency handling
If an emergency occurs during the air shower process, such as equipment failure, personnel fainting, etc., the emergency stop button in the air shower room should be pressed immediately, the power supply should be cut off, and the air shower room should be quickly left.
The emergency stop button is usually located next to the door of the air shower room or on the control panel, which is conspicuous and easy to operate.
2. Emergency plan
The clean room should formulate an emergency plan for the air shower room and conduct regular drills to ensure that all personnel are familiar with the emergency handling process.
The emergency plan should include emergency contacts, emergency channels, first aid measures, etc.
V. Other matters needing attention
1. Air shower time control
The air shower time should be implemented according to the clean room management regulations. Too short or too long air shower time will affect the purification effect.
Generally, the air shower time is 15-30 seconds, and the specific time can be adjusted according to the cleanliness requirements of the clean room and the contaminants carried by personnel.
2. Frequency of use of air shower room
The frequency of use of the air shower room should be reasonably arranged according to the cleanliness requirements of the clean room and the number of people entering and leaving, and avoid frequent opening of the air shower room to avoid affecting the life of equipment and purification effect.
3. Air shower room environment control
The air shower room should be installed at the entrance of the clean room, and the surrounding environment should be kept clean to avoid contamination inside the air shower room.
The floor in the air shower room should be kept dry to prevent people from slipping.