What is a Clean Booth? How often should Clean Booth maintenance be scheduled?

Clean Booth is a type of cleanroom equipment that is widely used in various fields such as Electronics, Pharmaceuticals, Food, Hospitals, etc. So, what is a Clean Booth? What is the structure and operating principle of a Clean Booth? How often should Clean Booth maintenance be scheduled? Let’s find out in the following article with INTECH Service!

What is a Clean Booth?

A Clean Booth is a type of compact cleanroom that can be easily assembled, disassembled, and moved to any location, simple, quick, flexible, and cost-effective. The equipment can provide separate air conditions, enhance filtration efficiency, reduce the risk of cross-contamination, and eliminate bacteria, molds, etc.

clean booth la gi

Structure of Clean Booth

A Clean Booth is usually composed of the following main components:

Frame: The frame is the part that shapes the size and shape of the clean booth. The material commonly used is stainless steel, ensuring high durability, good load-bearing capacity, and corrosion resistance. Depending on the usage needs, the frame can be designed in various sizes.

FFU (Fan Filter Unit): FFU is an air filtration device that generates clean air in a laminar flow, helping to remove dust, bacteria, and other pollutants in the air. The number of FFUs required for a Clean Booth depends on the desired cleanliness level.

Walls: Clean Booth has two main types of walls: rigid walls and soft walls. Rigid walls are usually made of tempered glass or panel boards, with the advantages of durability, easy cleaning, good impact resistance, but higher cost and heavier weight. Soft walls are made of anti-static curtains, with the advantages of easy movement, light weight, low cost, but lower impact resistance and durability.

Lights: Clean Booth uses dust-free cleanroom lights, usually LED lights for energy efficiency, long lifespan, and no heat emission.

Wheels: Clean Booth is equipped with multi-directional wheels for easy movement and locks to fix the wheels, ensuring the stability of Clean Booth during use.

In addition, Clean Booth may have additional components such as air conditioning system, alarm system, monitoring system, etc.

cau tao clean booth

Operating principle of Clean Booth

Clean Booth operates based on the principle of laminar flow.

The return air door is at the bottom of the hanging curtain or mesh curtain. The filtered clean air is delivered from the air supply device from top to bottom with a constant velocity of about 0.45m/s ± 20%.

The clean air flow forms a straight vertical one-way flow on the same surface, pushing the air inside Clean Booth downwards, then exhausting it to achieve the required cleanliness level.

Clean Booth does not rely on dilution but on clean air flow to push pollutants in the space out.

Classification of Clean Booth

There are two common ways to classify Clean Booth:

Classification of Clean Booth by wall structure

Standard vertical curtain type: Easy to install and move, cost-effective.

Glass wall type: Durable, easy to clean, good impact resistance, but higher cost.

Steel plate structure type: Sturdy, suitable for harsh working environments.

Closed-loop air conditioning type: Good control of temperature and humidity inside.

Modular combined type: Flexible, can expand the area when necessary.

Anti-static type: Suitable for areas requiring static control.

Closed-loop air bath type: Creates a clean environment by using air flow.

Classification of Clean Booth by cleanliness level

Class 10: The highest cleanliness level, used for areas producing semiconductor chips, pharmaceuticals, etc.

Class 100: Used for areas producing medical equipment, food, etc.

clean booth phong sach duoc pham

Class 1,000: Used for areas assembling electronic devices, laboratories, etc.

Class 10,000: Used for areas producing electronic components, warehouses, etc.

Class 100,000: Used for office areas, factories, etc.

Applications of Clean Booth

Clean Booth is used in various fields including semiconductor and liquid crystal equipment manufacturing plants, electronic or precision machinery manufacturers, electronic material manufacturing plants, food factories, pharmaceutical factories, and many other manufacturing industries.

Advantages and disadvantages of Clean Booth

Advantages of Clean Booth

Easy to install and move: Clean Booth has a modular structure, can be easily assembled and disassembled, and moved to any location.

Cost-saving: Compared to building fixed cleanrooms, Clean Booth is cheaper and has a shorter construction time.

Efficiency: Clean Booth provides a clean working environment with controlled levels of dust and bacteria.

Flexibility: Clean Booth comes in various sizes, configurations, and features to meet diverse usage needs.

Safety: Clean Booth is equipped with an alarm system to alert when incidents occur.

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Disadvantages of Clean Booth

Limited area: Clean Booth has a smaller size compared to traditional cleanrooms, thus the available space is limited.

Low load-bearing capacity: The load-bearing capacity of Clean Booth is lower than that of fixed cleanrooms.

Durability: The durability of Clean Booth depends on the material and structure, but generally it is lower than that of fixed cleanrooms.

Requires regular maintenance: Clean Booth needs to be regularly maintained to ensure operational efficiency.

How often should Clean Booth maintenance be scheduled?

The frequency of Clean Booth maintenance depends on various factors such as the type of Clean Booth, usage level, surrounding environment. However, as a general recommendation, Clean Booth should be maintained at least every 3 months.

In addition, you should also perform weekly and monthly checks as follows:


Clean the floor, walls, ceiling surfaces

Clean the equipment, tools in Clean Booth.

Replace dust filter bags.


Check the effectiveness of the air filtration system.

Check the tightness of the room door.

Check the lighting system.

Clean the temperature control system.


Maintain the alarm system.

Check the electrical system.

Calibrate measuring instruments.


Clean the entire Clean Booth.

Replace HEPA filters.

Maintain the temperature control system, air filtration.


The maintenance schedule above is for reference only. Businesses should adjust the maintenance schedule to suit their actual needs.

Use maintenance services from reputable providers to ensure quality.

Above is the information about the concept, structure, and maintenance schedule of Clean Booth. Hopefully, the above information has helped you understand Clean Booth better. If you have any further questions or need advice, please contact INTECH Service for detailed consultation