Whether the air shower is harmful - Huaqiang Electronic Network

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As we all know, when an air shower room is in operation, it mainly removes dust from the human body through powerful air blows. However, for those who work in cleanrooms, they must go through the air shower every day to enter the clean area, so it's important to understand whether it's safe or not.

Let’s start by understanding the internal structure of an air shower:

The main components inside an air shower include a large volume centrifugal fan, high-efficiency filter, automatic control system, intelligent voice system, and infrared sensing system. While the control system plays a key role, the most important part is the fan that generates the airflow.

When the air shower is working, the fan first draws in air, which then goes through initial filtration and high-efficiency filtering before being blown out at a speed of 20-25 m/s. This air is clean and significantly purer than regular indoor air conditioning. It’s estimated to be dozens of times cleaner, making it completely harmless to the human body.

Now, let’s talk about the air shower chamber:

If there's any impact on the body, it might be due to the wind speed hitting the person. However, scientific studies have shown that the average time spent in an air shower is around 10-20 seconds. During this short period, there's no significant risk. Additionally, employees wear dust-free clothing, which is usually thick and provides some protection against the airflow.

Therefore, the air shower process is a normal physical procedure, with no radiation or harmful effects on the human body.

Key factors to consider when purchasing an air shower room:

An air shower is the only way for employees to enter a cleanroom or move between different areas. It effectively removes dust particles from people or goods, ensuring the cleanliness of the environment.

Choosing the right air shower can be challenging for businesses. Just like buying a house, it requires careful consideration. Here are some important aspects to focus on:

1. Choose an air shower suitable for your company. Air showers come in various types, such as single, double, multi-person, and wind shower channels. For example, if a cleanroom has around 20 workers, you need to calculate how long it takes for everyone to pass through. A single air shower may take about 45 seconds for three people, meaning it can handle 3 people per minute. To manage 20 people within 10 minutes, a double or multi-person air shower would be more appropriate.

2. Consider the direction of the airflow. Air showers can be single, double, or triple blow models. The blowing effect depends on the fan parameters used. If a double shower uses one fan, the wind speed will be higher compared to a triple blow model. However, if two fans are used, a triple blow setup might offer better coverage.

3. Material selection is also crucial, as it affects both cost and durability. Common materials include cold-rolled steel plate with electrostatic spraying, stainless steel, or full stainless steel. Stainless steel is ideal for environments with high humidity or acidic gases, while cold-rolled steel is more cost-effective for less harsh conditions.