ผู้ให้บริการโซลูชันห้องคลีนรูมแบบครบวงจรและระบบ HVAC

Clean Room Air Conditioning

2026-02-07

Clean Room Air Conditioning (CRAH) is a specialized air conditioning system designed for clean rooms. Its core function is to meet the required standards of indoor air cleanliness, air distribution, and suspended particle/microbial concentration through multi-stage air filtration, on the basis of precise control of temperature, humidity and air pressure. As a core supporting equipment for modular clean rooms, operating rooms, pharmaceutical/electronic clean workshops, it directly determines the operational performance and compliance of clean rooms.

Core Features (vs. Conventional Air Conditioning)

Ultra-high Filtration Precision: Equipped with primary + medium + high-efficiency/ultra-high-efficiency (HEPA/ULPA) three-stage filtration as standard. HEPA filters achieve ≥99.97% filtration efficiency for 0.3μm particles, complying with ISO 1~9 cleanliness classes.
Precise Parameter Control: Temperature and humidity precision up to ±0.5℃, ±3%RH; indoor static pressure difference controlled at 5~20Pa (to prevent cross-contamination); air velocity/air change rate strictly matched with cleanliness classes (e.g., ≥60 air changes per hour for Class 100 operating rooms).
Specialized Air Distribution: Designed by cleanliness class, mainly including laminar flow (unidirectional flow) for Class 100/1000 and turbulent flow (non-unidirectional flow) for Class 10,000 and below, ensuring clean air covers the work area quickly and removes pollutants.
High Reliability & Energy Efficiency: Adopts frequency conversion fans and heat recovery devices (total heat/sensible heat) to meet 24/7 continuous operation requirements of clean rooms and reduce fresh air energy consumption; some models integrate sterilization modules (UV, photocatalyst) for microbial control.
Airtightness & Corrosion Resistance: High airtightness of units and air ducts to avoid air leakage affecting cleanliness; air-contacting components are mostly made of stainless steel/anti-corrosion materials, adapting to GMP requirements of pharmaceutical, food and other industries.

Main Types

Type	Core Features	Applicable Scenarios
Modular Clean AHU	Modular design, integrable with filtration, heat exchange, humidification and sterilization; large air volume (thousands to 100,000+ m³/h)	Central air supply for large modular clean rooms, electronic factories, pharmaceutical workshops, hospital clean operating departments
Clean Fan Coil Unit (FP)	Miniaturized, built-in medium-efficiency filtration, used with fresh air systems	Low cleanliness requirements (Class 10,000+), local clean areas (e.g., clean auxiliary rooms)
Laminar Flow Ceiling-specific CRAH	Integrated with operating room laminar flow ceiling, unidirectional direct supply, low noise	Class 100 hospital operating rooms, core areas of biosafety laboratories

Key Design & Selection Points

Cleanliness Class Matching: Higher class requires higher air change rate, filtration precision and air velocity (e.g., ISO Class 5 requires unidirectional flow, wind speed 0.36~0.54m/s).
Fresh Air Ratio: Meet indoor fresh air volume (≥30m³/person·h) + positive pressure make-up air + process exhaust air; reduce energy consumption via heat recovery.
Air Distribution: Laminar flow rooms adopt top supply & bottom/side return to avoid dead zones; turbulent flow rooms ensure uniform supply.
Industry-specific Requirements: Comply with GMP for pharmaceutical/food industries; anti-static design for electronics; meet medical standards (e.g., GB 50333) for operating rooms.

Supporting Facilities & Maintenance

Core Supporting: HEPA leak detector, differential pressure gauge, online temperature/humidity/particle monitoring system, air valve actuator.
Daily Maintenance: Replace primary/medium-efficiency filters (1~3 months) and HEPA filters (1~3 years, or immediately if resistance exceeds standard); regular unit cleaning and equipment inspection; maintain stable indoor positive pressure.

Applicable Industries

Medical (clean operating rooms, ICUs, CSSDs), Pharmaceutical (aseptic workshops, API production), Electronics (chip manufacturing, semiconductor packaging), Food Processing (aseptic filling), Laboratories (biosafety labs, physical & chemical clean labs), New Energy (lithium battery production), etc.

Handmade rock wool sandwich panels

recommended for you