Hardwall Cleanrooms are specialized environments designed to maintain strict control over contamination, temperature, humidity, and other critical factors. Unlike softwall cleanrooms, which use flexible materials for walls, hardwall cleanrooms are constructed with rigid materials, providing durability and stability. They are commonly used in various industries, including pharmaceuticals, biotechnology, electronics, and aerospace.
ISO Class(ISO 14644): ISO 5,ISO 6,ISO 7,ISO 8
Airflow type : laminar/turbulent
Air changes per hour (ACH) : Conversion based on different levels
Pressure differential : positive/negative, Pa
Filtration level : HEPA/ULPA
Temperature & humidity : Customized according to industry requirements
Construction materials/surfaces : ESD-safe, easy-clean
Our professional team provides one-stop, customized modular hardwall cleanroom solutions to meet your specific needs.








Deiiang aims to design and create hardwall cleanroom products that offer high cleanliness, superior quality, intelligent operation, low energy consumption, and low noise.

Wide core material selection: rock wool, magnesium oxide rock wool, silica rock wool, hollow magnesium oxide paper honeycomb, aluminum honeycomb, polyurethane, and stable foam. Panels feature a flat surface with no visible bumps, straight-cut edges, and no burrs.

Thickened, wear-resistant, and with excellent sound insulation. One-piece molded design with a double-layer tempered glass window. Hardware and locks are made of high-quality stainless steel with electrostatic spray coating. Fitted with stainless steel hinges and an automatic drop-down bottom seal.

Window frames are available in aluminum alloy or 304 stainless steel. Glass is 5mm 3C-certified tempered steel with four-edge fine grinding. Equipped with a stainless steel inner liner and desiccant ports to effectively prevent condensation.

Features a high-quality cooling coil with seamless copper tubes and hydrophilic aluminum fins for rapid heat exchange. Centrifugal fan delivers high airflow with low noise. Dynamic frequency conversion ensures energy-efficient operation, and the modular design allows for easy assembly.

High-sensitivity sensors capture real-time data on cleanroom temperature, humidity, and differential pressure. A central controller collects sensor data, performs strategic analysis, and sends commands to actuators to adjust temperature, airflow speed, and valve opening angles.

Made of high-quality die-cast aluminum with a premium surface finish. The diffusion light guide plate offers high light transmission with no dark areas. The sealed body prevents insect and dust ingress. High-brightness LED chips provide soft, eye-friendly illumination, and seamless screw covers ensure a neat appearance and easy cleaning.

Equipped with a DC motor for ultra-low noise operation at just 52±3 dB. Offers three adjustable airflow speeds and a plug-and-play design. Features a H14 HEPA filter with 99.99% efficiency at 0.3μm, insulated handles, and full corner guards to prevent wear and enhance stability.

Deiiang air shower is constructed from 1.0mm stainless steel for strong corrosion resistance and meets HACCP/GMP certification requirements. High-quality controller components, a dedicated fan with copper windings and high insulation class ensure stable operation. Features laser-cut, CNC-machined panels with smooth welds and thick leak-proof seals.


Both softwall and hardwall cleanrooms reduce particulate contamination; however, a soft-wall cleanroom is essentially a flexible clean tent, whereas a hard-wall cleanroom is a sturdy, permanent structure subject to much stricter environmental control standards.
Softwall cleanroom – key points
Light frames with bendable PVC curtains, quick to put up and shift
Low cost, quick installation, and localized improvement in cleanliness level.
Perfect for R&D, electronics assembly, temporary or frequently adjusted layouts
Hardwall cleanroom – key points
Hard-wall cleanroom panels typically consist of sandwich panels—available in thicknesses of 50, 75, or 100 mm—filled with fire-resistant materials such as rock wool. These panels offer fire resistance and thermal insulation, making them suitable for environments with strict temperature requirements, such as the pharmaceutical, food, and health supplement industries

Controls particles, ESD, and airflow for lithography, bonding, and SMT; rigid panels hold pressure steady, achieving ISO 5–7 with H14 HEPA and continuous monitoring.

Prevents haze and micro-scratches; low vibration, stable laminar flow; clean, matte surfaces; supports ISO 5 optical assembly, metrology, and alignment.

For cell culture and assays; segregated rooms, VHP-compatible finishes; reliable pressure cascades and monitoring to support compliant biosafety workflows.

Supports molding, assembly, packaging; validated ISO 7/8 zones, traceable materials; DQ/IQ/OQ accelerates qualification and audits under ISO 13485 and FDA.

Battery, inverter, sensor lines; rigid partitions stabilize humidity and particles; integrates ESD flooring, FFUs, BMS alarms to cut defects and downtime.

Contains powders and fumes; smooth panels clean fast; HEPA capture and segregated bays improve surface quality and operator safety without major rebuilds.

Avionics, optics, composites; stable pressure, low outgassing materials; modular zones adapt quickly while enforcing strict FOD control.

Weighing, compounding, secondary packaging; pressure cascades, easy-clean walls; GMP-ready ISO 8 with documented monitoring and clear SOPs.
Key structures and auxiliary equipment behind stable airflow, cleanability and safety.

Full-condition operation: Operates from -26℃ to 55℃, with a 20% performance improvement under extreme conditions
Full-frequency inverter energy saving: Dual IPLV (Level 1) for both cooling and heating, with a comprehensive IPLV energy saving rate of up to 26%
All-scenario adaptability: Suitable for comfort, advanced technology, year-round cooling, and high-intensity heating at low temperatures
Simple exterior design: Fully concealed design with four-sided three-dimensional air return
Simplified system structure: Single compressor design with optimized refrigerant piping
Easy user experience: Compatible with all modular units, user-friendly control panel, one-button operation (optional), data management, and worry-free after-sales service
High Efficiency and Energy Saving: The outdoor unit can provide cooling independently or hot water in winter, reducing the use of electric heating in winter and achieving high energy efficiency.
Easy Installation and Lower Investment: Comes with refrigerant pre-installed; piping is simpler than a water system, resulting in high installation efficiency.
Adaptable to Extreme Conditions: Numerous technologies ensure stable cooling and heating under extreme conditions.
Stable and Reliable Operation: High-quality components combined with professional controls.
Control Panel: Newly upgraded with a simple and stylish human-machine interface. Flexible control options, allowing for both modular and open control.


Deiiang CleanBooth uses high‑efficiency FFUs to deliver laminar flow and stable ISO classes over key work areas.
Types: AC FFU and energy‑saving DC FFU
Standard sizes: 575×575, 1175×575, 1175×1175 mm
Built‑in HEPA/ULPA filters, low vibration and low noise
Supports speed control, group control and future system upgrades
The control system panel centralizes fan, lighting and alarm control, helping operators keep airflow and energy use under control.
On/off and speed control for individual or grouped FFUs
Lighting control, emergency stop and basic alarm indication
Options for pressure, temperature and humidity display
Expandable interface for BMS or cleanroom central monitoring

| ISO Class | ACH (Air Changes Per Hour) |
|---|---|
| ISO 3 | 360 - 540 |
| ISO 4 | 300 - 540 |
| ISO 5 | 240 - 480 |
| ISO 6 | 50 - 60 |
| ISO 7 | 30 - 40 |
| ISO 8 | 15 - 25 |
To start, simply select a manufacturing process and upload a 3D CAD file.
Within a few hours we'll send you design for manufacturability (DFM) analysis and real-time pricing.
Once you review your quote and place your order, we'll start the manufacturing process. We also offer finishing options.
Our digital manufacturing process allows us to produce parts in as fast as 1 day.
Deiiang Hardwall Cleanrooms Quality Control Flowchart


A hardwall clean room is a controlled environment designed to prevent the contamination of sensitive processes, equipment, and products. Constructed with rigid, solid walls, these rooms provide stability and are equipped with advanced filtration systems, environmental controls, and strict cleanliness standards. They are ideal for industries like pharmaceuticals, biotechnology, and electronics, where the integrity of products must be safeguarded against contaminants.
Description:
A hardwall clean room features durable and solid walls, as opposed to flexible, soft walls used in other types of clean rooms. It ensures a stable environment by controlling air quality, temperature, humidity, and particle contamination levels. The sealed structure provides better control over cleanliness, making it suitable for high-precision industries.
Key Features:
Hardwall clean rooms typically include high-efficiency particulate air (HEPA) or ultra-low penetration air (ULPA) filters to maintain air purity. The environment within the clean room is carefully regulated through HVAC systems that control air flow, temperature, and humidity. Hardwall clean rooms can meet various cleanliness standards such as ISO 14644-1 and are designed for industries that require stringent conditions.
1. Structural Differences:
The primary distinction between a hardwall and softwall clean room lies in their construction. Hardwall clean rooms have rigid, solid walls, providing greater structural stability and better control over environmental conditions. In contrast, softwall clean rooms use flexible curtains or panels, which are easier to modify but offer less contamination control.
2. Contamination Control:
Hardwall clean rooms provide superior contamination control. The solid walls are less likely to allow air leakage, making it easier to maintain positive pressure and reduce particle contamination. Softwall rooms, while easier to assemble, can be prone to more contamination risks due to the flexibility of their walls.
3. Flexibility and Cost:
While hardwall clean rooms are often more expensive and less flexible in design changes, they are ideal for applications requiring high cleanliness standards. Softwall clean rooms are more cost-effective and flexible, suitable for temporary needs or industries with less stringent requirements.
4. Applications:
Hardwall clean rooms are typically used in industries that demand strict regulatory compliance, such as pharmaceuticals, medical device manufacturing, and aerospace. Softwall clean rooms are often preferred in less regulated environments or where flexibility and portability are important.
Customization Options: Yes, hardwall clean rooms can be highly customized for various applications.
Design Flexibility: Custom design features such as specific air filtration systems, wall materials, and size can be incorporated to meet application needs.
Size Adjustments: Hardwall clean rooms can be built in different sizes to fit particular processes or equipment.
Compliance Specifications: Customization helps meet industry regulations, ensuring the clean room meets specific cleanliness standards.
Material Selection: Materials such as stainless steel, aluminum, and specialized coatings can be chosen based on chemical or physical requirements.
Technology Integration: Advanced monitoring and automation systems can be integrated into the design to provide real-time data and ensure consistent environmental control.
Hardwall clean rooms are highly versatile, making them ideal for specific applications that require customization for cleanliness, compliance, and technological integration.
HEPA Filters:
Hardwall clean rooms commonly use High-Efficiency Particulate Air (HEPA) filters to trap particles as small as 0.3 microns, ensuring the air remains contaminant-free.
ULPA Filters:
Ultra-Low Penetration Air (ULPA) filters are used in the most stringent environments, capturing even smaller particles with an efficiency of 99.999% for particles as small as 0.12 microns.
Ensuring compliance with cleanroom regulations such as ISO 14644-1 or GMP standards is essential for industries that require stringent cleanliness. This involves designing the room according to the necessary class, continuous monitoring, and adherence to procedures.
Regular Monitoring and Validation:
Regular air quality checks, temperature, and humidity monitoring are crucial. Validation of systems like filtration and airflow ensures compliance with cleanliness levels. Monitoring equipment should be calibrated regularly to maintain accurate readings.
Training and Procedures:
Employees should be trained in proper cleanroom protocols, including gowning procedures, cleaning, and equipment handling. Strict adherence to these protocols helps minimize contamination risks.
Documentation:
Maintaining detailed records of testing, cleaning, and maintenance activities is essential for compliance audits and regulatory inspections.
Maintenance and Audits:
Scheduled maintenance of HVAC and filtration systems ensures continued operation. Regular audits help verify the clean room's performance and adherence to regulations.
1. Planning and Design:
The installation of a hardwall clean room begins with comprehensive planning, where the requirements for the cleanroom are defined based on the industry and application. The clean room design layout, size, filtration systems, and environmental control systems are specified.
2. Site Preparation:
The site must be prepared to meet structural and environmental needs. This may include reinforcing the floor, electrical work, and installing plumbing if required.
3. Construction Phase:
Construction typically involves assembling prefabricated walls, floors, and ceilings, followed by the installation of air handling systems, filtration units, and HVAC systems.
4. Final System Setup:
Once the structure is in place, the air filtration and HVAC systems are calibrated, and environmental controls are integrated to ensure proper functioning.
5. Certification and Testing:
After installation, the clean room undergoes thorough testing to verify that it meets the required cleanroom ISO class and regulatory standards. This includes particle count tests, airflow checks, and pressure differential tests.
6. Commissioning:
Once everything is verified, the clean room is commissioned for use, and all necessary documentation is completed for compliance purposes.
7. Relevant International Standards:
Installation processes must adhere to international standards such as ISO 14644, which defines cleanroom classifications, and GMP (Good Manufacturing Practice) for pharmaceutical or food industry applications.
HVAC Systems: The primary method of controlling temperature and humidity in a hardwall clean room is through the HVAC system, which regulates air flow and environmental conditions.
Sensors and Automation: Sensors continuously monitor temperature and humidity levels, with automated systems adjusting settings to ensure they stay within the required parameters.
Regular Calibration: Calibration of temperature and humidity sensors is crucial to maintain the accuracy of readings and ensure the system responds correctly to changes in environmental conditions.
Maintenance of Cleanroom Equipment: Routine maintenance of HVAC equipment, such as cleaning filters and checking for system leaks, ensures continued efficient operation and the ability to control environmental conditions effectively.
Data Logging: Data logging systems track temperature and humidity over time, helping to identify trends or potential issues before they become critical.
Airflow Considerations: Proper airflow design, in combination with the HVAC system, helps to maintain consistent temperature and humidity throughout the cleanroom.
Pharmaceutical Needs:
Yes, hardwall clean rooms are highly suitable for pharmaceutical applications, where contamination control is critical for drug safety and efficacy.
Regulatory Compliance:
Hardwall clean rooms meet strict regulatory requirements such as those outlined by the FDA and EMA, which mandate specific environmental conditions for drug production.
Sterile Manufacturing:
These rooms are essential for the manufacturing of sterile products, as they can maintain the necessary particle count and microbial levels.
Controlled Environment:
Hardwall clean rooms provide an environment where temperature, humidity, and airflow are precisely controlled, which is vital for pharmaceutical production processes.
Quality Assurance:
The cleanroom environment helps ensure product consistency and quality, reducing the risk of contamination and defects.
The high level of control and cleanliness provided by hardwall clean rooms makes them essential for the pharmaceutical industry, where even the smallest contaminants can compromise the product's safety and quality.
Hardwall clean rooms are known for their superior durability and high-level containment capabilities compared to modular options. They are ideal for industries requiring stringent contamination control, such as pharmaceuticals, electronics, and biotechnology. Their permanent structure and solid walls make them more suitable for long-term operations.
1. Increased Containment and Durability
Hardwall clean rooms are more robust than modular clean rooms due to their rigid structure, which ensures better containment of particulate matter and contamination. The solid walls and ceilings create a stable and secure environment, crucial for industries where even minute contamination can affect the quality and safety of products. This level of durability is particularly advantageous in industries like semiconductor manufacturing, pharmaceutical production, and aerospace, where environmental control is critical.
2. Better Airflow and Control
Hardwall clean rooms offer superior control over airflow, pressure, and temperature. The walls are typically designed to support a higher level of filtration, which helps in creating a more stable and consistent air flow. This is essential for maintaining the cleanroom's classification standards, such as ISO 14644, and reducing the chances of contamination. The rigid design also allows for more precise control of particle count in the air, which is essential for critical manufacturing processes.
3. Long-Term Investment
Hardwall clean rooms provide a long-term solution for facilities that require high levels of cleanliness. The solid walls are easier to maintain, and the overall structure is more resilient to wear and tear. Although the initial investment is higher than modular clean rooms, the long-term benefits of reduced maintenance and longer lifespan make hardwall clean rooms a more economical choice over time.
4. Customization and Flexibility
Unlike modular options, which can be limited in terms of size and structural changes, hardwall clean rooms offer more flexibility when it comes to customization. These rooms can be designed to meet specific regulatory requirements, include specialized air filtration systems, and accommodate a variety of layouts. This makes them a better choice for industries that need a tailor-made environment to suit precise operational needs.
Hardwall clean rooms offer substantial advantages over modular options in terms of durability, containment, airflow control, and long-term cost efficiency. These benefits make them an ideal choice for industries with stringent environmental and contamination control requirements.
Select a supplier with proven expertise in designing and constructing hardwall clean rooms tailored to your industry's needs.
Ensure the supplier follows international standards such as ISO 14644 to ensure high-quality design and functionality.
Choose a supplier capable of offering customization to meet your specific operational requirements and space limitations.
Research the supplier's reputation through customer feedback and past project successes to ensure reliability and performance.
Consider the total cost of ownership, including maintenance services and post-installation support, to ensure a cost-effective solution in the long run.
Identify the execution standards applicable to your product and industry (e.g., ISO, GMP, FDA).
Based on your production process, determine the optimal floor plan and workflow layout.
Define ISO class (or GMP grade) and temperature/humidity requirements for your cleanroom.
Select based on your environment: Powder‑coated steel (cost‑effective), HPL (scratch‑resistant), or Stainless Steel (heavy chemical sanitization).
Choose Single‑pass (vented to shop) for simple setups, or Recirculating for better temperature, humidity, and pressure control.
Ensure design meets GMP/FDA (pharma/medical) or ESD‑safe requirements (electronics) as needed.
Opt for a modular design if you anticipate relocating, expanding, or reconfiguring the layout later.