Clean rooms are specially designed controlled environments in manufacturing that minimize contamination risks during production by strictly regulating airborne particles, temperature, humidity, and air pressure. These specialized spaces are critical for many high-tech and precision manufacturing industries.
Core Features of Clean Rooms
Air Quality Control
Use of HEPA/ULPA high-efficiency filters
Maintenance of specific airflow patterns (laminar or turbulent)
Controlled air changes (up to hundreds per hour)
Environmental Parameter Control
Precise temperature (typically 20-22°C) and humidity (30-50% RH) regulation
Maintenance of positive or negative pressure (to prevent external contamination or internal pollutant leakage)
Personnel and Material Management
Strict dress codes (cleanroom suits, gloves, masks, etc.)
Specialized procedures for material transfer (airlocks, disinfection passages)
Major Application Industries
Semiconductor and Electronics Manufacturing
Chip production requires ISO Class 3-5 clean rooms
Prevents dust from damaging delicate circuits
Pharmaceuticals and Biotechnology
Sterile drug manufacturing requires ISO Class 5-7
Essential for vaccine and biologics production
Medical Device Manufacturing
Implantable device production environments
Packaging of disposable medical supplies
Aerospace
Satellite and spacecraft assembly
Precision optical component manufacturing
Food and Cosmetics
Sterile packaging environments
Handling of highly sensitive ingredients
Clean Room Classification Standards
| ISO Class |
≥0.5μm Particles/m³ |
Typical Industry Applications |
| ISO 3 |
≤1,000 |
Semiconductor lithography |
| ISO 5 |
≤3,520 |
Pharmaceutical sterile filling |
| ISO 7 |
≤352,000 |
Medical device assembly |
| ISO 8 |
≤3,520,000 |
Food packaging |
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