Air Shower
Air Shower | Cleanroom Air Shower
The air shower is the necessary passage of entering cleanrooms, which can reduce the risk of contamination caused by personnels or materials during the process of going into the clean zone from non-clean zone. Before entering cleanrooms, dust particles carried by working staffs or materials can be effectively blown off by the air at the speed of 25m/s sprayed from stainless steel nozzles on sides or top of the air shower.
The working principle of air showers is, after the air is filtered by primary efficiency filters, it is inhaled into the static pressure box by the centrifugal fan, purified by HEPA filters further, and sprayed from rotatable nozzles at high speed, which can effectively remove dust particles. After being filtered, the air will recirculate into the air shower.
As an experienced air shower manufacturer in China, we welcome you to send us requirements to start the process of customization.
Air Shower Specifications
| Model | ASR-900 | ASR-1400 | ASR-2900 |
| External Size(W*D*H) mm | 1300*1000*2080 | 1300*1500*2080 | 1300*3000*2080 |
| Internal Size(W*D*H) mm | 800*900*1950 | 800*1400*1950 | 800*2900*1950 |
| Main Body Material | 304 Stainless Steel or Painted Galvanized Steel | ||
| Cleanliness Level | ≥99.99%(@≥0.3μm) | ||
| Primary Efficiency Filter | G4 | ||
| High Efficiency Filter | H13 | ||
| Nozzles Qty. | 12 | 16 | 32 |
| Air Speed | ＞22 m/s | ||
| Main Body Material | Stainless Steel / Painted Galvanized Steel | ||
| Interlocking System | Electromagnetic Type | ||
| Door Qty. | 2 / 3 | ||
| Customized design for size, material, and other specifications is available, click the button below for asking a tailored solution. | |||
Structure
1. Box Body 2. Emergency Button 3. Power Light 4. Stainless Steel Door 5. View Glass 6. Door Closer 7. Touch Screen 8. Lighting 9. Stainless Steel Nozzles 10. HEPA Filter 11. Primary Efficiency Filter 12. Centrifugal Fan
Features
- Doors adopt recessed and flush design for cleaning easily without collecting dust.
- The material of box body are optional with high quality stainless steel and painted cold-rolled steel.
- Customizable based on requirements, such as door quantity(2-Doors / 3-Doors), door type(winged type, roll up type), sizes, etc.
- Infrared sensor is equipped to control air flow automatically.
- Interlocking system is equipped to prevent from contamination.
- Emergency button is equipped for safe operation.
- Micro-computer control panel makes operation easily.
- Comply with GMP and ISO 14644 standards.
Cleanroom Air Shower-The Complete FAQ Guide
Learn more about the cleanroom air shower with this guide. We prepare some questions and answers for you.
- What Is A Cleanroom Air Shower?
- What Are the Benefits of A Cleanroom Air Shower?
- What Is the Working Principle of A Cleanroom Air Shower?
- How to Operate and Use An Air Shower?
- Which Industries Utilize Cleanroom Air Showers?
- How to Choose the Right Cleanroom Air Shower?
- How to Install Cleanroom Air Showers?
What Is A Cleanroom Air Shower?
An Air Shower is a local forced-air purification unit installed at the entrance between a cleanroom and a non-cleanroom area. Its primary function is to remove particulate contaminants from the surfaces of personnel or cargos before entering the clean zone by high-velocity, purified air jets from strategically placed nozzles. By effectively scrubbing away most adhered dust and microbial particles, the air shower acts as a critical barrier, safeguarding the integrity and classification of the cleanroom environment.
Picture 1 Cleanroom Air Shower
What Are the Benefits of A Cleanroom Air Shower?
A cleanroom air shower offers a range of critical benefits that safeguard product quality, ensure regulatory compliance, and improve operational efficiency. Its key benefits include:
(1) Superior Contamination Control: It acts as a primary barrier, using high-velocity, HEPA-filtered air to effectively remove particulate contaminants from personnel and goods before they enter the critical cleanroom environment. Its interlocked doors also function as an airlock, maintaining cleanroom pressurization.
(2) Protection of Products and Processes: By minimizing the introduction of pollutants, air showers directly reduce defects, increase product yield, and ensure the integrity of sensitive processes in industries like pharmaceuticals, semiconductors, and biotechnology.
(3) Regulatory Compliance: Installation of an air shower is often a key requirement to meet stringent international standards, such as GMP and ISO 14644, facilitating successful audits and certifications.
(4) Cost Efficiency: While an initial investment, air showers provide long-term savings by extending the life of the main cleanroom’s HVAC filtration system, reducing cleaning frequency, and preventing costly contamination-related downtime or product loss.
What Is the Working Principle of A Cleanroom Air Shower?
When an air shower operates, the air is drawn by the fan unit, filtered by the primary filters and blown into the unit’s plenum (static pressure chamber). After the primary purification, the air passes through the HEPA filters(99.99%@0.3um). The highly purified air is ejected at high speed through nozzles installed on the side walls, directed towards the surfaces of people or cargos, effectively removing dust particles. The airflow carries the dislodged particles and back into the primary filter for initial filtration. This process cycles repeatedly, forming a self-contained, recirculating air purification unit.
How to Operate and Use An Air Shower?
Strict adherence to the following procedures based on the air shower’s operating principle is essential for both effective decontamination and equipment protection.
1. Preparation and Entry
Confirm the air shower is idle by checking the viewing window and status indicator after gowning. Wait approximately two seconds after the previous user exits and the door closes before entering.
2. During the Shower Blowing
Walk directly through the photoelectric sensor to automatically initiate the shower blowing after entry. Raise your hands and rotate 360 degrees to ensure comprehensive air-jet coverage. Both doors remain locked during operation, please do not attempt to open. In case of any emergency during blowing, please press the emergency stop button to halt the cycle and unlock the doors.
3. Completion and Exit
After the air stops blowing, please wait two seconds before opening the exit door to leave.
Which Industries Utilize Cleanroom Air Showers?
Cleanroom air showers are a critical contamination control solution for any industry where microscopic particles, microbes, or cross-contamination can compromise product quality, process integrity, or research outcomes. Their use is widespread across the following key sectors:
1. Pharmaceuticals & Biotechnology
Sterile drug manufacturing (injectables, ophthalmic products)
Vaccine production
Cell and gene therapy labs
Biotech research
2. Microelectronics & Semiconductors
Chip fabrication
Wafer processing
Micro-electromechanical systems (MEMS) production
Display manufacturing (LCD, OLED)
3. Medical Devices & Implants
Surgical instruments production
Implantable devices production
Diagnostic kits production
Single-use sterile devices production
4. Aerospace & Precision Engineering
Gyroscopes manufacturing
Satellite components assembly
Optical lenses manufacturing
High-precision instruments production
5. Healthcare & Life Sciences
Hospital compounding pharmacies
Research laboratories
Animal facilities
6. Food & Beverage
Sterile products (e.g., extended-shelf-life milk, ready-to-eat meals) production
Probiotic cultures
High-risk processing areas
How to Choose the Right Cleanroom Air Shower?
Selecting the appropriate air shower is crucial for effective contamination control. The right choice depends on a careful analysis of your specific needs. Here are the key factors to consider:
1. Type and Size
Personnel Air Shower: For staff entry only. Choose between Single-Person (for low-traffic areas) and Multi-Person (for high-traffic entrances to improve efficiency).
Cargo Air Shower: For materials, equipment, and large goods. They are larger and have different nozzle arrangements to handle pallets and carts.
Custom Sizes: The internal size should allow a person to rotate freely. For cargo showers, ensure it can accommodate your largest expected items.
2. Material
Cold-Rolled Steel: The most common and cost-effective option, typically with electrostatic powder coating for a smooth, easy-to-clean surface.
Stainless Steel (SUS 304 or SUS 316): Essential for environments with high corrosion potential, such as food, pharmaceutical, or chemical industries. More durable and easier to sterilize.
3. Key Technical Specifications
Air Velocity: The nozzle jet speed should typically be ≥20 m/s (≥4000 fpm) to effectively dislodge particles.
Filtration Efficiency: Must be equipped with HEPA filters with a minimum efficiency of 99.99% on 0.3μm particles.
Control System: Look for a user-friendly microprocessor-based control panel with features like:
Programmable shower time (e.g., 10-99 seconds).
Visual and audible indicators (LED status lights, alarms).
Interlock functionality (prevents both doors from opening simultaneously).
4. Additional Features
Emergency Stop Button: For safety, allowing immediate shutdown and door release.
Self-Diagnostic Function: Alerts users to issues like low airflow or filter clogging.
How to Install Cleanroom Air Showers?
Contact Us to Learn More About Air Showers for Cleanrooms
Contact us to learn how our cleanroom air showers can be implemented into your space. You can also request a quote for pricing information. KINROM is your trusted source for industry-leading custom cleanrooms and cleanroom supplies.
