What is an air shower in a clean room?

Air showers are integral components in cleanroom facilities designed to minimize the introduction of contaminants. They are used to remove surface particulates from personnel or equipment entering controlled environments. This process significantly reduces the risk of contamination, ensuring that products are manufactured in a sterile setting, essential in sectors such as microElectronics and pharmaceuticals.

Key Benefits:

• Reduces particulate contamination by up to 90%
• Protects sensitive manufacturing processes
• Maintains ISO Cleanroom standards
• Prevents costly product contamination

Personnel Air Showers

Designed to decontaminate individuals entering the cleanroom. These showers feature strategically placed nozzles to remove particles from clothing and protective gear.

Cargo air showers

Used for decontaminating materials and equipment. These larger units accommodate pallets, carts, and equipment before they enter controlled environments.

Pass-Through Air Showers

Positioned between two cleanroom areas to facilitate transfer of items without introducing contaminants. Features interlocked doors to maintain pressure differentials.

Air showers operate by using high-velocity hepa-filtered air jets to dislodge and remove particles from surfaces. As individuals or items pass through, the air shower initiates a cycle:

• High-Velocity Air Jets: Strategically positioned jets dislodge contaminants from all surfaces
• Air Recirculation: Filtered air is recirculated back into the system, maintaining efficiency
• Timed Sequence: Typically 10-30 seconds, depending on contamination risk level

Biotechnology & Pharmaceuticals

Ensuring sterile conditions during drug formulation and production to meet regulatory requirements.

MicroElectronics

Protecting sensitive components from particles that could impair functionality or cause failures.

Aerospace

Maintaining precision component integrity by preventing contamination during assembly.

Research Laboratories

Safeguarding experimental results by ensuring contaminant-free environments.

Q: How do air showers contribute to cleanroom contamination control?

A: By using high-velocity air jets to remove particulate matter, they prevent contamination from entering controlled environments.

Q: What distinguishes HEPA filters in air showers?

A: HEPA filters capture 99.97% of particles ≥0.3 micrometers, ensuring highly efficient air purification.

Q: Are air showers necessary for all cleanroom types?

A: While not mandatory, they are highly recommended for environments requiring strict contamination control.

Q: How long does a typical air shower cycle last?

A: Generally, an air shower cycle lasts between 10 and 30 seconds, depending on the application requirements.

Q: What maintenance is required for air showers?

A: Regular filter replacements and system inspections ensure continued efficiency and compliance.