How to Choose a Clean Booth? In-depth Analysis of the Advantages and Disadvantages of ESD, PVC, and Rigid Wall Types
1. ESD Cleanroom
Materials and Structure: The frame is constructed from industrial aluminum profiles, stainless steel square tubing, or powder-coated iron square tubing. Enclosure materials include anti-static curtains (such as anti-static mesh curtains) or acrylic panels. The top is equipped with a fan filter unit (FFU) and high-efficiency particulate air (HEPA/ULPA) filters.
Key Features:
Anti-static Performance: Effectively conducts static electricity through anti-static curtains and grounding design, preventing static electricity from attracting dust or damaging sensitive components. Suitable for electrostatic-sensitive environments such as electronic component manufacturing and semiconductor packaging.
Cleanliness: Internal cleanliness levels range from ISO Class 5 (Class 100) to ISO Class 8 (Class 100,000), meeting high-precision manufacturing requirements.
Flexibility: Modular design allows for rapid assembly, relocation, or size adjustment, suitable for temporary or localized cleanliness needs.
Application Scenarios: Environments requiring anti-static properties and high localized cleanliness, such as electronic assembly, SMT workshops, optical instrument manufacturing, and pharmaceutical packaging.
2. PVC Clean Booth
Material and Structure: The frame is typically made of industrial aluminum profiles or stainless steel, and the enclosure material is transparent anti-static PVC soft curtains. The top is equipped with FFUs and filters.
Key Features:
Anti-static Performance: PVC soft curtains achieve static dissipation by adding conductive materials, but the anti-static effect is slightly weaker than dedicated anti-static curtains, making it suitable for scenarios with low static electricity requirements.
Cost Advantage: PVC materials are inexpensive, and the overall cost is lower than ESD clean booths, making it suitable for projects with limited budgets.
Transparency: PVC soft curtains have high transparency, making it easy to observe internal operations, but they are quite flexible and may deform with long-term use.
Application Scenarios: General electronic production, food packaging, and ordinary laboratories—environments with low static electricity requirements but requiring basic cleanliness.
3. Hard Wall Cleanroom
Materials and Structure: Utilizes rigid materials (such as color steel plates, stainless steel plates, acrylic plates, or tempered glass) for the walls, with a stainless steel or aluminum frame. The roof is equipped with FFUs and an air conditioning system, forming a closed clean space.
Key Features:
Sealing and Cleanliness: The rigid walls provide strong sealing and can integrate air conditioning, temperature and humidity control systems. Internal cleanliness can reach ISO Class 5 (Class 100) or even higher, suitable for scenarios with extremely high cleanliness requirements.
Durability: Robust materials and long service life, but higher cost and longer installation period.
Flexibility: Fixed design with limited mobility, but can be expanded modularly to increase cleanliness level or area.
Application Scenarios: Pharmaceutical GMP workshops, biosafety laboratories, high-precision semiconductor manufacturing, and other scenarios requiring strict environmental control.
IV. Selection Recommendations
Prioritize ESD Cleanrooms: For applications requiring static electricity protection and with a moderate budget, such as electronic component manufacturing and SMT workshops.
Select PVC Cleanrooms: For applications with limited budgets and low static electricity requirements, such as general laboratories and food packaging.
Select Hard Wall Cleanrooms: For applications requiring a consistently high level of cleanliness, such as pharmaceutical GMP workshops and biosafety laboratories.