Why Do Modern Laboratories Need Ultra-Low Dew Point and Ultra-Low Humidity Control?

What Makes Ultra-Low Dew Point Laboratories Essential for Lithium Battery and Semiconductor Research?

  In a laboratory, humidity isn’t a minor detail—it can make or break your results. Excess moisture can cause material failures, distort data, and even damage expensive equipment; too low or unstable humidity carries its own risks. For cutting-edge research in fields like new energy, batteries, semiconductors, and life sciences, a precisely controlled ultra-low dew point and ultra-low humidity environment means more reliable data, higher yields, and groundbreaking results. Choose the right humidity solution and make every experiment more reliable, efficient, and advanced!

What Is Ultra-Low Dew Point and Its Relationship with Relative Humidity?
  Ultra-low dew point refers to air that has been deeply dried, resulting in an extremely low dew point temperature (typically ≤ -40°C), which indicates a minimal moisture content in the air. Compared with relative humidity, ultra-low dew point is better suited to describe low-humidity environments, as it is an absolute measure that is not affected by temperature.

Why Do Laboratories Require Ultra-Low Humidity?
  Ultra-low humidity environments are critically important in laboratories, especially in research and production fields that are highly sensitive to moisture. The main reasons can be summarized as follows:

1.Ensure the Stability of Experimental Materials
  Some experimental materials are prone to physical or chemical changes in high-humidity environments. For example, certain polymers, pharmaceuticals, and biological samples may absorb moisture, deteriorate, or lose activity under humid conditions. An ultra-low humidity environment effectively slows down these degradation processes, ensuring the stability, reliability, and safety of experimental materials.

2.Improve the Accuracy of Experimental Results
  In experiments that are highly sensitive to humidity, even slight changes can directly affect outcomes. For instance, in lithium battery performance testing, material surface treatments, and precision measurements, minor fluctuations in humidity can lead to deviations in results. An ultra-low humidity environment provides a stable condition, thereby enhancing the accuracy and reproducibility of experimental outcomes.

3.Prevent Microbial Growth
  High-humidity environments provide ideal conditions for microbial proliferation. In biological and pharmaceutical laboratories, microbial growth can contaminate samples and compromise the accuracy of experimental results. An ultra-low humidity environment inhibits the growth and reproduction of microorganisms, ensuring the cleanliness and integrity of the laboratory environment.

4.Meet Specific Experimental Requirements
  Some experiments inherently require an ultra-low humidity environment. For example, lithium battery performance tests conducted in ultra-low humidity laboratories need to simulate battery operation under low-moisture conditions to evaluate performance across different environments. Additionally, in fields such as materials science and environmental science, ultra-low humidity is an essential experimental condition.

5.Protect Precision Instruments and Equipment
  Many precision instruments and devices are highly sensitive to humidity. High-humidity environments can cause internal components to absorb moisture, oxidize, or corrode, affecting their accuracy and lifespan. In laboratories such as semiconductor manufacturing, optical instrument testing, and precision electronics testing, an ultra-low humidity environment effectively prevents moisture damage, ensuring both accurate experimental data and long-term stable operation of equipment.

What Do Common Ultra-Low Dew Point Levels (-40°C, -60°C, -70°C) Represent?
  Dew point temperature is a key indicator of the water vapor content in the air—the lower the dew point, the less moisture the air contains, and the drier it is. The following shows the dryness levels represented by dew points of -40°C, -60°C, and -70°C:
 

Industry Applications
1. Ultra-Low Humidity Requirements for Lithium Battery Research Laboratories
Background Overview
  Lithium batteries are extremely sensitive to environmental humidity, especially during critical processes such as electrode material preparation, electrolyte injection, and battery packaging. Moisture in the air can trigger a series of chemical reactions that degrade battery performance, shorten lifespan, and even pose safety risks. Therefore, ultra-low humidity environments (dew point ≤ -40°C) have become a standard requirement for lithium battery laboratories and production facilities.
 Key Reasons for the Requirement
▶ Destructive Impact of Moisture on Battery Performance
  During lithium battery production, moisture can react with lithium salts in the electrolyte (such as LiPF₆) to generate corrosive substances like hydrofluoric acid (HF), which damages electrode materials and reduces battery life. When moisture content exceeds 100 ppm, battery capacity degradation accelerates significantly. HF can corrode aluminum foils in the current collector, leading to increased internal resistance and higher risks of thermal runaway. Moisture content in the electrolyte typically needs to be controlled below 20 ppm.

▶ Technical Standards and Construction Requirements for Ultra-Low Humidity Environments
  Ultra-low humidity refers to air with a dew point below -40°C. In lithium battery laboratories, dew points are often required to reach -60°C or even -70°C to ensure extremely low moisture content. According to the Design Standard for Lithium-Ion Battery Factories (GB51377-2019), critical areas such as electrolyte injection rooms and electrode drying rooms must maintain a dew point below -60°C.

▶ Impact of Ultra-Low Humidity on Battery R&D and Testing
  During the R&D phase, ultra-low humidity environments are essential not only for production but also for key experiments such as battery aging tests and cycle life evaluations. Testing batteries under high-humidity conditions can distort performance data and compromise R&D decisions. Controlling the dew point in high/low temperature and humidity tests allows laboratories to simulate extreme environments and assess battery stability. Laboratories must also simulate various climate conditions (e.g., high temperature and humidity, low temperature and low humidity) to verify battery performance under different real-world scenarios.

2. Humidity Control Requirements in Semiconductor and Optoelectronic Material Experiments
  In semiconductor and optoelectronic material experiments, humidity is generally maintained at 40%–60% RH, with fluctuations not exceeding ±5% RH. For special processes, such as photolithography, even stricter control may be required (e.g., 50 ± 5% RH) to prevent static electricity, moisture absorption by materials, or condensation that could affect experimental precision.

3. Role of Ultra-Low Humidity in Biopharmaceutical or Protein Research
▶ Protein Stability Depends on Humidity Control: High humidity can trigger hydrolysis and structural changes, affecting drug efficacy. Proteins must be stored in environments with <10% RH.
▶ Pharmaceutical Production Processes Are Sensitive to Humidity: Processes such as lyophilization, filling, and powder blending require control within 10–30% RH to prevent moisture absorption and contamination.
▶ Microbial Suppression Is a Core Requirement: Maintaining relative humidity below 60% effectively inhibits mold growth, reducing product contamination and loss.
▶ Laboratory Environments Require High-Precision Control: Research-level experiments, such as protein crystallization, require equipment like glove boxes to achieve humidity levels below 100 ppm.
▶ Emerging Humidity Detection Technologies: Low-cost, portable humidity-sensitive papers are increasingly replacing traditional electronic sensors, improving detection efficiency.

4. Ultra-Low Dew Point Solutions for New Energy Material Laboratories
  Ultra-low dew point control in new energy material laboratories primarily relies on desiccant wheel dehumidification technology and customized laboratory environment control systems. This ensures that dry room dew points reach -60°C or even lower, meeting the high-precision requirements for material testing and preparation.
New energy material laboratories demand extremely strict temperature and humidity control, especially during processes such as lithium battery material testing and drying. Dew point control is one of the key performance indicators. To guarantee the accuracy of experimental data and the stability of material properties, professional-grade dehumidification and environmental control solutions are essential.
The solution can be explained through two main components: the enclosure structure and the air conditioning system.
▶ Enclosure Structure
Walls and Ceiling: Constructed from metal panels with excellent airtightness (e.g., color steel panels, glass magnesium panels), with all joints sealed using specialized sealants. The ceiling should be fully sealed to prevent air from non-clean areas above from entering.
Flooring: Use seamless epoxy self-leveling floors or PVC sheet flooring, with rounded corners at wall junctions. This design facilitates cleaning and prevents dust and moisture accumulation.
Doors and Windows: Doors in core areas should be airtight, and windows should be fixed double- or triple-glazed units, eliminating any unnecessary openings. Observation windows must be well-sealed.

▶ Air Conditioning System
  Two-Stage Deep Dehumidification Process
  Achieving an ultra-low dew point cannot rely on conventional refrigerated dehumidification alone; a combined dehumidification approach is required.
Stage 1: Pretreatment Dehumidification (Deep Cooling + Desiccant Wheel)
Deep Cooling Coils: Traditional refrigerated dehumidification can only lower the air dew point to around 10°C. To achieve lower dew points, cooling coils using low-temperature chilled water (e.g., 5/10°C ethylene glycol solution) are employed to pre-cool the air to a dew point of 3–5°C, removing most sensible and latent heat (moisture).

  Desiccant Wheel Dehumidification: This is the critical step. Pre-cooled air passes through a desiccant wheel dehumidifier filled with silica gel or molecular sieve. The desiccant has a vast microporous surface area that strongly adsorbs moisture, easily lowering the air dew point below -40°C, even down to -70°C. The wheel is regenerated through a high-temperature zone (around 140–200°C) and reused in a continuous cycle.

Stage 2: Maintenance Dehumidification and Precision Control
  Air dried by the desiccant wheel passes through a secondary cooling coil (adiabatic cooling) to bring the temperature back down to supply air levels after the heat of adsorption.
  Before entering the room or at the return air point, a dry chemical adsorption unit (e.g., molecular sieve modules) can be installed as a final “polishing” step to handle trace moisture loads from personnel or materials, ensuring extreme dew point stability.

▶ Airflow Organization and Pressure Control
  Airflow Organization: The core dry area should use vertical laminar flow (top to bottom) or horizontal laminar flow supply. This creates a clean air “piston” in the workspace, effectively pushing contaminants and moisture generated by equipment or personnel downstream, maintaining ultra-low dew point and high cleanliness. Supply ceilings are fully equipped with high-efficiency filters.
  Pressure Control: A stable positive pressure gradient must be established: core dry area > transition area > general area. The pressure gradient is usually maintained at 5–15 Pa or more. This ensures that when doors are opened, air always flows from cleaner, drier areas to less clean areas, preventing ingress of humid outside air. Pressure is automatically maintained through bypass dampers or variable air volume supply/exhaust systems.

▶ Automatic Control and Monitoring System
  High-Precision Sensors: Multiple key points in the core area must be equipped with high-precision, low-range dew point sensors, providing real-time monitoring and feedback to the HVAC control system.
DDC/PLC Control System: All operations of the air conditioning units (e.g., desiccant wheel speed, chilled/hot water valves, reheat valves, fan frequency) should be fully automated. PID control adjusts to the set dew point and temperature values, ensuring extreme stability of environmental parameters.

5. Dehumidification Technologies in Ultra-Low Dew Point Laboratories: Desiccant Wheel vs. Refrigerated Dehumidification
  In ultra-low dew point laboratory environments, desiccant wheel and refrigerated dehumidification are two commonly used technologies. Their performance differs mainly in dehumidification capacity, applicable scenarios, and operational characteristics. A comparison is as follows:

Comparison of Core Energy and Dehumidification Capacity:

As shown in the table above:
  Ultra-Low Dew Point Laboratories (Dew Point < -40°C): Desiccant wheel dehumidification is a must, particularly molecular sieve wheel units, which can achieve relative humidity below 1%.
  Conventional Low-Humidity Scenarios (Dew Point 10–15°C): Refrigerated dehumidification can be an economical option, but energy consumption costs should be carefully evaluated.
  Optimized Solution: For laboratories requiring both temperature and humidity control, a combined system of desiccant wheel dehumidification + refrigerated air conditioning can be considered, balancing deep dehumidification with temperature regulation.

6. How Air Handling Units (AHU) Achieve the Balance Between Low Humidity and Cleanliness?
  As one of the most important air treatment devices in cleanrooms, Air Handling Units (AHUs) not only maintain air cleanliness but also regulate temperature and humidity. Controlling low-humidity environments adds further complexity. The typical air handling process in a low-humidity AHU is as follows:

Fresh Air Primary Filter (G4): Captures dust particles ≥5 μm carried by fresh air, with an efficiency >85%.
Fresh Air Pre-Cooling Section: Uses low-temperature chilled water to condense moisture from the fresh air, lowering the dew point to around 10°C.
Fresh Air Desiccant Wheel Section: Further dehumidifies the fresh air via physical adsorption, reducing the dew point close to 0°C.
Mixing Fan Section: Mixes return air from the room with fresh air to provide airflow.
Medium Efficiency Filter Section (F8): Captures dust particles of 1–5 μm in the mixed air, with an efficiency >85%.
Mixed Air Secondary Cooling Section: Removes heat absorbed from the desiccant wheel and sensible heat carried by return air.
Mixed Air Desiccant Wheel Section: Eliminates residual moisture from fresh air and moisture generated inside the room, lowering the mixed air dew point to below -45°C or even lower.
Supply Fan Section: Pressurizes and supplies the conditioned air to the room for circulation.
Post-Mixed Air Cooling Section: Removes heat absorbed in the secondary desiccant wheel and adjusts the air to supply temperature conditions.
Post-Heating Section: Heats the air in cold regions during winter to ensure comfortable supply air temperatures.

7. Key Design Considerations of Building Enclosure for Preventing Air Leakage and Condensation
Material Requirements for Low-Humidity Modular Cleanrooms
(For walls, sealants, insulation, etc.)
Material Selection and Reasoning:
Material Selection and Reasoning:

▶ Wall Materials
Preferred Option: Metal sandwich panels (e.g., double-sided color-coated steel/aluminum honeycomb panels, double-sided stainless steel/aluminum honeycomb panels)
Considerations:
Substrate and Coating: Select dense, non-porous substrates. Coatings should use environmentally friendly baked paint or epoxy with low VOCs and high cross-linking density. Avoid ordinary paints or coatings containing plasticizers.
Joint Treatment: Panel lap joints must include a labyrinth seal design, with specialized sealant applied internally to ensure airtightness.
Thickness and Strength: Panel thickness must ensure overall structural rigidity and flatness, preventing deformation or noise caused by internal/external pressure differences or temperature changes.
Reason:
① Near-Zero Moisture Absorption: Metal itself does not absorb moisture and will not become an internal source of humidity.
② Smooth Surface, Dust-Resistant: Easy to clean and wipe, meeting cleanroom requirements.
③ Structural Stability: Does not shrink or deform in low-humidity environments, maintaining long-term airtightness.
④ High Durability: Long service life with low maintenance costs.

Materials to Avoid:
Gypsum Board, Mineral Wool Board: These materials have a porous structure and act as a "moisture sponge," continuously releasing moisture into the room. Their use is strictly prohibited.
Ordinary Color-Coated Steel Panels: If the core materials (e.g., rock wool, polystyrene) are exposed or not properly sealed, they can also absorb moisture.

▶ Sealant Materials
Preferred Option: High-performance silicone sealant or modified silane sealant
Considerations:
Neutral Curing: Must choose neutral-curing silicone sealant. Avoid acidic sealants, as acidic curing agents may corrode metals and chemically contaminate sensitive process equipment.
Ultra-Low VOCs: Select products clearly labeled as "low off-gassing," "low VOCs," and "suitable for cleanrooms."
Hydrophobicity: The sealant itself should have good water-repellent properties to prevent surface condensation.
Elasticity and Durability: Must have excellent elastic modulus to withstand thermal expansion and contraction caused by temperature changes without cracking or delaminating.

Reason:
① Stability: High-quality silicone maintains elasticity and adhesion across low-humidity and wide temperature ranges, without becoming brittle or cracking.
② Low Permeability: Effectively prevents outdoor moisture from seeping into the cleanroom through gaps.
③ Chemical Inertness: Once cured, it does not release harmful substances, ensuring process safety.
Materials to Avoid:
Polyurethane Foam, Acrylic Sealant: These materials are typically porous, may contain solvents, and can absorb moisture, making them potential sources of contamination and humidity.
Ordinary Glass Sealant: High VOCs and poor durability.

▶ Insulation Materials
Selecting insulation materials is crucial, as they are typically filled between wall panels. If chosen incorrectly, they can become hidden "humidity bombs."
Preferred Option: Closed-cell rigid foam
Specific Materials:
- Extruded Polystyrene (XPS)
- Closed-cell Polyurethane Foam (PUR/PIR) – PIR (Polyisocyanurate) is especially recommended for its excellent thermal insulation and superior fire resistance.
Considerations:
- Closed-Cell Ratio: Products with a high closed-cell ratio (>95%) must be selected. A closed-cell structure means the foam's internal cells are independent, preventing moisture and air circulation within the material.
- Water Vapor Permeability: Choose products with extremely low water vapor permeability.
- Fire Rating: Must comply with building fire safety standards; PIR is usually the better choice.
 

Reasons:
① Prevent Condensation: When there is a significant temperature and humidity difference between the inside and outside of the wall, open-cell insulation materials (e.g., glass wool, rock wool) allow water vapor to penetrate and condense inside or at cold bridge locations, causing insulation failure, structural corrosion, and microbial growth. Closed-cell materials effectively block water vapor.
② Non-Hygroscopic: Even when exposed to a humid environment, closed-cell materials absorb almost no moisture, ensuring long-term stability of thermal insulation and preventing them from becoming a source of humidity.
Materials to Avoid:
Open-Cell Insulation Materials: Such as glass wool, rock wool, and open-cell foam. These materials act like sponges, absorbing and retaining large amounts of water, which is then slowly released into the dry cleanroom, making them the "number one killer" for low-humidity cleanrooms.

▶ Other Materials
Flooring: Epoxy self-leveling or PVC sheet
Reason: Seamless, dense, wear-resistant, chemically resistant, non-hygroscopic, and easy to clean and disinfect. Joints must be welded.
Observation Windows: Multi-layer insulated glass
Reason: The insulated layers must be filled with dry air or inert gas, and the seal must be completely intact to prevent condensation within the glass layers. Glass sealants must use the aforementioned high-performance silicone sealant.
Lighting, Doors, and Windows:
All embedded components must be made of metal or low-off-gassing plastics. Sealing gaskets should use inert materials such as silicone. The sealing of door/window profiles and glass edges is critically important.

8. Energy Consumption and Energy-Saving Optimization Methods for Low-Humidity Laboratories
Application of BIM and Intelligent Monitoring in Ultra-Low Humidity Laboratory Construction
▶ Core Applications of BIM Technology in the Design and Construction Stages of Ultra-Low Humidity Laboratories
Definition: Using BIM technology to build 3D models, integrating multi-disciplinary design data to optimize laboratory spatial layout, equipment arrangement, and construction processes, addressing the special requirements of ultra-low humidity environments for airtightness and cleanliness.

3D Modeling and Clash Detection: For example, laboratory projects use BIM for full-discipline clash detection, reducing construction changes. In ultra-low humidity labs, coordination is especially needed for HVAC ducts, dehumidification equipment pipelines, and laboratory instruments to avoid air leakage affecting humidity control.

Parametric Families and Detailed Design: Through parametric settings in Revit families (e.g., material airtightness, equipment interface dimensions), precise modeling of dehumidification systems and airtight enclosure structures can be achieved.

Construction Simulation and Visualization: Navisworks can simulate complex spatial construction sequences, ensuring installation accuracy of ultra-low humidity equipment (e.g., dew point meters, drying units).

▶ Intelligent Monitoring System and Collaborative Management of Ultra-Low Humidity Environments
Definition: Combining IoT sensors with a data platform to monitor laboratory temperature, humidity, dew point, cleanliness, and other parameters in real time, with linked control systems for dynamic adjustment.

Real-Time Data Collection and Feedback: Based on the integration principle of BIM and IoT, sensors can associate humidity data (e.g., dew point ≤ -60℃) with the BIM model, visually displaying humidity distribution across different zones.

Predictive Maintenance: By analyzing equipment operation data (e.g., dehumidifier energy consumption, filter pressure differential), potential faults can be warned in advance to prevent humidity fluctuations from affecting experimental samples (e.g., proteins, semiconductor materials).

Compliance Management: The intelligent monitoring system automatically generates humidity control records to meet GMP, ISO, and other standards in biopharmaceuticals, materials research, and other fields (according to user-specific domain requirements).

▶ Full-Life Cycle Data Integration of BIM and Intelligent Monitoring
Definition: Using the BIM model as a data carrier to integrate design parameters, construction records, equipment specifications, and operation & maintenance data, achieving integrated management of the laboratory from construction to operation.

Data Flow and Sharing: The BIM model from the design phase can be directly transferred to the operation phase. The intelligent monitoring system feeds real-time data back to the model, updating equipment status.

Space and Energy Optimization: For example, ultra-deep underground laboratories can verify clear heights through the BIM space management model and, combined with intelligent monitoring data, optimize HVAC system operation strategies to reduce energy consumption.

Change Management: BIM's revision function can record changes in humidity control plans, and the intelligent monitoring system synchronously updates control logic to ensure data consistency.

▶ Technical Challenges in Ultra-Low Humidity Laboratory Construction and BIM Solutions
Definition: Addressing the high requirements for airtightness, material compatibility, and airflow organization in ultra-low humidity environments, using BIM technology to solve special challenges in design and construction.

Airtightness Design: BIM can simulate different enclosure structures (e.g., stainless steel wall panels, sealed doors and windows) and use parametric analysis to reduce the risk of air leakage through gaps.

Pipeline Integration and Condensation Prevention: In MEP detailed design, BIM can differentiate low-temperature pipelines from ordinary pipelines using filter settings, optimize insulation thickness, and prevent condensation from affecting humidity.

Special Equipment Integration: BIM modeling for systems such as inert gas protection or vacuum drying equipment must coordinate equipment interfaces with laboratory humidity control zones (tailored to user-preferred fields such as new energy materials and biopharmaceuticals).

9. Rise and Advantages of Modular Low-Humidity Laboratories
Core Definition and Features of Modular Laboratories
Modular laboratories use prefabricated module components (e.g., structural frames, functional units, piping systems) to achieve rapid assembly and flexible adjustment, adapting to different research scenarios in terms of space and functionality.
▶ Standardized Module Design: Components prefabricated in the factory and assembled on-site, reducing on-site construction contamination and shortening construction time.
▶ Flexible Adaptability: Supports rapid adjustments of spatial layouts and functional zones (e.g., laboratory area/office area).
▶ Integrated Service Systems: Piping and wiring (water, electricity, gas) are designed as suspended or wall-mounted systems, enabling "plug-and-play" functionality.
▶ Full Life-Cycle Cost Optimization: Reusable and easy to maintain or upgrade, reducing long-term investment risks.

Core Advantages of Modular Laboratories
▶ Efficient Construction and Flexible Expansion
- Shortened Construction Time: Construction cycles are reduced by more than one-third compared to traditional methods, suitable for rapid deployment of R&D projects in fields like new energy and biopharmaceuticals.
- Dynamic Adjustment Capability: Laboratory benches and clean spaces can be flexibly reconfigured according to team size and research direction, avoiding the "built once, fixed forever" limitation of traditional labs.

▶ Cost and Investment Protection
- Reduced Initial Costs: Prefabricated modules reduce on-site labor and material waste, saving 20%-30% of construction costs compared to traditional methods.
- Long-Term Investment Preservation: Modules can be disassembled, relocated, and reused (e.g., modular cleanrooms can achieve up to 80% reuse rate), particularly suitable for multi-scenario use in universities and corporate research institutes.
▶ Environmental Control and Sustainability
- Precise Environmental Management: Integrated temperature, humidity, and cleanliness control modules (e.g., modular cleanrooms can precisely regulate temperature and humidity to ±0.5℃/±5%RH), meeting the needs of experiments sensitive to microenvironments such as semiconductor materials and protein research.
▶ Eco-Friendliness and Energy Saving
- Use of recyclable materials reduces construction waste; suspended piping systems minimize energy loss, complying with green laboratory standards.
▶ Functional Integration and Intelligence
- Modular Functional Furniture: Full-steel central benches, mobile overhead cabinets, integrated reagent racks, and sinks, adaptable to diverse experimental workflows.
- Intelligent Management: Some systems support remote monitoring and data analysis, improving laboratory efficiency.

Application Scenarios and Typical Cases
- Universities and Research Institutes: Adaptable to multidisciplinary research. For example, a materials science laboratory can quickly switch between organic synthesis and characterization/testing zones.
- Biopharmaceuticals: Modular cleanrooms comply with GMP standards, supporting flexible scale-up for processes such as vaccine development and protein purification.
- New Energy Sector: Lithium battery R&D laboratories use modular design to rapidly reconfigure drying rooms and electrolyte testing areas, shortening process verification cycles.
- Clinical Diagnostics: Modular biochemical and immunoassay systems (e.g., CSM-8000) save over 30% of space, enabling rapid deployment of testing capabilities in primary healthcare facilities.
 

10. Design Key Points and Common Challenges of Modular Ultra-Low Humidity Laboratories
Background:
The design of modular ultra-low humidity laboratories emphasizes standardization, flexibility, and scalability, suitable for various scenarios such as research, testing, and emergency response. The core concept is to achieve rapid deployment, flexible adjustment, and efficient operation through the combination of functional modules.

Key Design Points of Modular Laboratories.
 

 Common Challenges and Solutions
▶ Inefficient Layout: Low space utilization affecting experimental workflow.  
   Solution: Conduct detailed upfront planning, use modular design principles, and allocate functional areas reasonably.
▶ Complex Ventilation System Design: Can cause accumulation of hazardous gases or noise interference.  
   Solution: Design airflow speed and duct layout according to experiment type and select low-noise equipment.
▶ Insufficient Electrical System Capacity: Inaccurate power statistics may lead to tripping or inadequate supply.  
   Solution: Reserve 20%-30% additional power capacity and design wiring rationally.
▶ Difficulty in Module Integration: Low on-site assembly efficiency.  
   Solution: Use quick-connect interfaces and automatic leveling systems to ensure rapid deployment.
▶ Inadequate Safety Standard Implementation: Neglect of protection levels or intelligent monitoring.  
   Solution: Strictly follow biosafety standards and equip negative pressure systems with intelligent tracking.

11. AIRKEY Modular Ultra-Low Dew Point and Ultra-Low Humidity Laboratory Project Case: 
Xinyi Glass Malaysia and Indonesia PVB Glass Lamination Room Project
- Planned Area: 450 m²
- Cleanliness Requirement: ISO8-ISO7
- Temperature Requirement: 22 ± 3℃
- Relative Humidity: 23 ± 3%
- Structural Type: Modular aluminum alloy frame + sandwich panels
- Ceiling: Aluminum modular keel + aluminum honeycomb sandwich panels (self-supporting structure, no suspension required)
- Flooring: 2mm PVC sheets
- HVAC System: Air-cooled chiller + water-cooled rotary dehumidification air handling unit + HEPA high-efficiency supply air outlets, full-air system