Clean Booth for Class 100: Efficient Air Filtration from Trusted China Suppliers and Factory
Widely used across a range of precision and contamination-sensitive industries, clean laminar flow hoods deliver controlled, particle-free environments wherever cleanliness is critical.
This is the "skeleton" of the clean booth, determining its overall shape, size, and stability.
MaterialsIndustrial Aluminum Profiles — The most mainstream and common choice. Typically, high-quality aluminum alloy (such as 4040 or 4080 profiles) with an anodized surface finish. They offer the advantages of being lightweight, high-strength, corrosion-resistant, aesthetically pleasing, and easy to assemble and disassemble.
Stainless Steel — Primarily used in applications with extremely high requirements for cleanliness, corrosion resistance, or structural strength, such as in certain bio-pharmaceutical or food industries.
Modular Design: The frame uses standardized components and connectors, allowing flexible assembly into booth bodies of different sizes (length, width, height), offering excellent scalability and adaptability.
Stability: Ensured through the use of reinforcing struts, leveling feet, or floor anchoring to prevent shaking caused by fan vibration or personnel contact.
These are the "walls" that form the enclosed space of the clean booth, directly impacting the sealing of the clean area and the maintenance of cleanliness.
MaterialsColor Steel Sandwich Panels: The most common material, typically consisting of steel sheets on the outside filled with core materials like Polystyrene (EPS), Polyurethane (PU), or Rock Wool. Rock wool color steel panels are widely used for their excellent fire resistance.
Tempered Glass: Often used for side or front panels, providing good visibility for observing internal operations. Can be fully transparent or frosted.
Acrylic Sheets: A lower-cost transparent material option, but with less strength and durability compared to tempered glass.
Panels are connected via specialized tongue-and-groove joints, with sealant applied strictly at the seams to ensure the booth is airtight, preventing the ingress of external contaminants.
| Filter Type | Filtration Efficiency | Target Particle Size | Typical Applications |
|---|---|---|---|
| HEPA | ≥ 99.97% | ≥ 0.3 μm | Electronics, Pharmaceuticals, Laboratories, Food Industries |
| ULPA | ≥ 99.999% | 0.1 – 0.2 μm | Semiconductors, Biosafety Laboratories, Ultra-high Standard Fields |


This is the "heart" of the clean booth — the core element responsible for creating and maintaining the clean environment.
Core ComponentsFFU (Fan Filter Unit): The most critical component of a clean booth. It is a modular unit integrating a HEPA filter and a fan, installed on the ceiling grille of the booth structure.
Fan: Provides the power for air circulation, pushing clean filtered air downward from the FFU into the work zone.
🔽 Vertical Laminar Flow — The most common form. FFUs are installed on the top, causing clean air to flow vertically downward like a piston, carrying away contaminants. Air is returned through bottom or side return air panels, passes through pre-filtration, and is drawn back into the FFU to be pushed through the HEPA filter again, forming a continuous cycle.
➡️ Horizontal Laminar Flow — FFUs are installed on the side, causing air to flow horizontally across the work surface. Suitable for certain specific process requirements.












