Cleanroom Air Shower Decontamination Chamber
Engineered as an essential cleanroom entryway barrier that scours loose particulates, fibers, and contaminants from personnel clothing prior to entering sterile production areas. Equipped with high-pressure centrifugal blowers, HEPA H14 filtration, and fully automated optical motion sensing cycles.
Engineering Overview & Fluid Dynamics
Active contamination barrier and laminar downflow principles
The Himalayan Steel Cleanroom Air Shower is a self-contained decontamination vestibule positioned at the critical boundary between gowning change rooms and classified cleanrooms (ISO Class 5 to ISO Class 8). High-pressure centrifugal blowers discharge filtered air at 25 to 28 m/s through 360-degree adjustable stainless nozzles, creating a turbulent scrub effect that dislodges particulate contaminants from cleanroom garments. The loosened debris is immediately drawn into base-level suction pre-filters, recirculated, and scrubbed through certified H14 HEPA filters before returning to the nozzles.
Technical Engineering Specifications
Standard dimensional tolerances, electrical parameters, and air quality ratings
Standard Dimensional Matrix
Fabrication schedule comparison in Imperial and Metric standards
| Size (Feet) | Metric (MM) | Internal Chamber (W x D x H) | External Footprint (W x D x H) |
|---|---|---|---|
| Single Person (Standard) | 900 x 1000 x 2100 mm | 800 x 900 x 2000 mm | 1200 x 1000 x 2180 mm |
| 2-Person Tunnel | 900 x 1500 x 2100 mm | 800 x 1400 x 2000 mm | 1200 x 1500 x 2180 mm |
| 4-Person Continuous Tunnel | 900 x 3000 x 2100 mm | 800 x 2900 x 2000 mm | 1200 x 3000 x 2180 mm |
| Cargo / Pallet Air Shower | 1500 x 1500 x 2200 mm | 1400 x 1400 x 2100 mm | 2000 x 1500 x 2300 mm |
Cleanroom Construction & Architectural Design
cGMP sanitary fabrication details from our Baddi engineering works
Constructed from 1.5 mm thick AISI 304 stainless steel panels with structural internal tubular framework that guarantees vibration-free operation under high aerodynamic pressure.
Die-pressed 360-degree rotating stainless steel ball nozzles positioned symmetrically along side walls and ceiling to target chest, waist, and leg zones effectively.
Centrifugal direct-coupled backward-curved fan units delivering 1500–2500 CFM against high filter static resistance with soft-start electrical acceleration.
Seamless stainless doors with full-length piano hinges, double-layer silicone gasket sweeps, and heavy-duty magnetic locks with 280 kg holding strength.
Heavy-duty anti-slip stainless steel perforated floor allows loosened dust to drop directly into pre-filter suction plenums beneath feet.
Digital display shows air velocity countdown, filter clogging alerts via differential pressure sensors, and programmable cycle parameters.
Standard Operating Protocol (cGMP SOP)
Standard operating guidelines and contamination control sequence
Step-by-Step Material Transfer Sequence
Sanitization & Wipe-Down Protocol
- Remove and wash base suction pre-filters weekly using warm purified water; dry thoroughly before re-fitting.
- Sanitize interior walls and nozzles daily with 70% IPA cleanroom wipes.
- Mop bottom sump tray beneath perforated floor twice weekly.
Fail-Safe Interlock Protection
- Both doors lock during air jet operation; opening either door triggers alarm.
- Hit emergency red push-button to unlock both doors immediately in any emergency.
Optional Engineering Customizations
Site-specific hardware adaptations
- Static-neutralizing ionizer blower bars integrated directly into nozzle air streams
- Automatic motorized sliding doors or fast-acting cleanroom roll-up doors
- Yellow sodium lamp lighting for photo-sensitive formulation suites
- Intercom communication system between internal chamber and supervisor station
- Integrated walk-over sticky mat recessed frame at entrance
- FLAMEPROOF / ATEX motors for chemical and solvent handling cleanrooms
Quality Validation Package (DQ/IQ/OQ)
Audit-ready documentation for US FDA and EU-GMP inspections
- Design Qualification (DQ) Documentation & Foundation Layout
- Installation Qualification (IQ) Electrical & Mechanical Protocols
- Operational Qualification (OQ) Interlock & Cycle Timing Verification
- Nozzle Air Velocity Test Certificate (25 m/s minimum across all nozzles)
- DOP/PAO Filter Integrity Scan Certificate
- Acoustic Noise Level Compliance Certificate (<72 dB)
Cleanroom Design Highlights
- High-velocity 25 m/s air jets dislodge 99.9% of loose fibers, hairs, and particulate matter
- Fully automated hands-free operation initiated by optical infrared sensors
- Emergency release buttons unlock both doors instantaneously in safety situations
- HEPA filtration and continuous closed-loop recirculation keep internal air clean between cycles
Target Pharmaceutical Applications
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