Cleanrooms are rooms with exceptionally clean air and, as a rule, controlled environmental conditions. They are classified into 

cleanroom classes 1 through 9. These classes are based on the maximum permissible concentration of particles in the air. For example, in Class 9 cleanrooms, 35,200,000 particles/m³ of 0.5 µm in size are permitted, whereas in Class 1 cleanrooms, the limit is 10 particles/m³ of 0.1 µm in size. 

Cleanrooms are used in semiconductor production, the pharmaceutical industry, and the manufacture of medical devices, among other applications. The clean air in cleanrooms prevents products from being contaminated or damaged by airborne particles. 

To ensure the required air purity , cleanrooms use specialized air-handling systems. HEPA filters and filtration systems, as well as airlocks for personnel and materials, are also required. Cleanrooms must be verified, qualified, and regularly inspected or re-qualified to confirm that they meet the required cleanliness standards. People working in cleanrooms are generally required to wear special cleanroom clothing. 

Compared to clean areas, the requirements for cleanrooms are significantly higher. Mini-environments are also used in cleanrooms and dry rooms for specific, designated areas with higher protection requirements and/or to optimize the building services. 

Clean areas are rooms with exceptionally clean air and often controlled environmental conditions. They are classified into clean area classes 1 through 3 . Traditionally, clean areas are primarily used in the automotive industry, where they are defined by a specific standard. In other sectors, clean areas are often used when the requirements for climate control are higher than usual, but ISO or GMP classifications are not yet required. 

The controlled environmental conditions in clean areas prevent products from being contaminated or damaged by airborne particles. To ensure the required level of cleanliness, both organizational measures and targeted airflow and air conditioning systems are implemented, depending on the specific requirements .  

Metrology rooms are specialized environments designed for conducting high-precision measurements and tests. 

They are used in laboratories and research institutes, as well as in industrial applications and quality assurance, to ensure highly accurate and reproducible measurement results. Originally, they were designed primarily for length measurement. 

Metrology rooms are classified into Classes 1 through 4 . The reference parameter is temperature, with Class 1 having the most stringent requirements for temperature distribution and consistency. 

To minimize disruptive environmental influences during measurements, environmental conditions such as temperature, humidity, and other factors like vibrations are often precisely defined or specified in relevant standards and regulations. 

To ensure the defined conditions are reliably met, metrology rooms are equipped with specialized airflow systems and climate control technology. This includes, among other things, air conditioning units with high-precision temperature control and, where required, humidity control. 

Companies, laboratories and research institutes use rooms with specific requirements for climate control and air purity, particularly in production, research and development, and quality assurance. 

In many industries, there are specific requirements regarding which standards must be met. In many cases, these are supplemented by customer-specific requirements that are specifically tailored to the respective use of the cleanroom, clean area, or metrology room . 

We develop customized solutions for cleanrooms, clean areas, and metrology rooms in the following industries and application areas, among others: 

• Pharmaceutical industry 
• Chemical industry 
• Pharmacies 
• Medical technology 
• Stem cell laboratories 
• R&D laboratories 
• Genetic engineering and biotechnology 
• Nanotechnology 
• Food industry 
• Beverage industry 
• Aerospace 
• Space Technology 
• Automotive industry 
• Mechanical engineering 
• Automation technology 
• Batteries 
• Fuel cells 
• Hydrogen 
• Microelectronics 
• Optical Industry 
• Laser technology