Precise sound under cleanroom conditions
Cleanrooms play a crucial role in many high-tech industries, such as the pharmaceutical industry, semiconductor manufacturing and medical technology. They guarantee controlled conditions to protect sensitive products from particles or germs.
With the WA 06-77/T CLR, we now offer a purpose-built loudspeaker designed to meet the strictest hygiene and cleanliness standards. A good reason to take a closer look at the fundamentals of cleanroom applications.
What Is a Cleanroom?
A cleanroom is a controlled environment where airborne particle concentration is kept within defined limits. Parameters such as temperature, humidity, and pressure are also regulated. Even minimal contamination, like dust or microbes, can lead to defective batches or safety issues.
Typical applications include:
- Manufacturing of microchips or optics
- Sterile pharmaceutical production
- Hygienic processing in biotechnology and food sectors
How Do Cleanrooms Work?
Cleanroom performance is based on several key components:
- Filtered air using HEPA or ULPA filters
- Airflow systems that guide and remove particles
- Positive pressure zones to keep contaminants out
- Strict entry and material flow control
- Cleanroom-compatible materials, like those used in the WA 06-77/T CLR
- Monitoring systems that ensure consistent environmental conditions
Design features include smooth, seamless surfaces, air exchange rates up to 600 times per hour, and strict access regulations – all according to internationally recognised standards.
Cleanroom Classes According to ISO 14644-1
The ISO 14644-1 standard classifies cleanrooms by the number of airborne particles per cubic meter, from ISO 1 (ultra clean) to ISO 9 (standard indoor air).
For example:
| ISO Class | Max. particles ≥ 0,5 µm pro m³ |
| ISO 5 | 100.000 |
| ISO 7 | 10.000.000 |
| ISO 9 | ≈ normal indoor air |
Measurements are performed using air particle counters at defined points. Compliance with the limits determines the ISO class.
Typical Use Cases per ISO Class?
ISO 1–3: Semiconductor and microelectronics production
ISO 4–5: Laser optics, pharmaceutical filling lines
ISO 6–7: Medical devices, cosmetics manufacturing
ISO 8–9: Airlocks, changing areas, low-critical environments
An ISO 5 cleanroom is approximately 100 times cleaner than a typical office environment.
Our Solution: WA 06-77/T CLR
Our new cleanroom loudspeaker combines acoustic precision with a hygienic, compliant design. Featuring abrasion-resistant materials, smooth surfaces, and a compact form factor, it integrates seamlessly into demanding cleanroom setups.
With technical expertise, material-appropriate construction, and an understanding of industry-specific requirements, we offer more than just sound reinforcement: We deliver solutions that integrate seamlessly into critical environments – visibly discreet, acoustically impressive, and standard-compliant down to the last detail.
