Air Shower

Air shower is the first-line contamination isolation airlock installed between non-clean and cleanroom zones, acting as a dedicated self-circulating purification passage for personnel, trolleys, raw materials and production tools.

High-velocity HEPA-filtered airflow blasts loose dust, lint, hair and microbial particles off staff coveralls or cargo surfaces; double electronic interlock doors strictly prevent simultaneous opening of both sides, blocking direct air exchange between dirty and sterile areas, stabilizing cleanroom positive pressure and avoiding cross-contamination.

Main classification: Personnel Air Shower (single / double / multi-person long tunnel) & Cargo Air Shower (for pallets, production carts, large equipment).

Working Principle

1. User enters the cabin and closes the outer door; infrared sensor auto-triggers the air shower cycle.

2. Centrifugal fan draws internal air through G3 primary pre-filter to trap large particles, then purified by H13/H14 HEPA filter.

3. Clean air sprays out from 180° adjustable stainless steel nozzles at wind speed ≥25m/s, agitating clothing surfaces to dislodge attached contaminants.

4. Blown dust circulates back into the filter system for continuous capture; doors remain locked during the whole shower cycle (adjustable 1–99 seconds).

5. After purification countdown completes, the inner cleanroom door unlocks for entry.

Main Structure & Material

1. Cabin Body Material (Two Standard Versions)

• Full SUS304 stainless steel (Premium Medical/Pharma Grade): Inner & outer full seamless argon arc welding, all corners rounded without sanitary dead angles, anti-corrosion against alcohol, hydrogen peroxide and chlorine disinfectants, ideal for operating rooms, vaccine workshops and sterile labs.

• Exterior powder-coated cold rolled steel + internal SUS304 stainless steel (Economical General Type): Cost-effective for electronics, food packaging medium-clean workshops.

2. Double Interlock Door System

• Door panel: SUS304 stainless steel with tempered transparent observation window; hidden hydraulic door closer for automatic closing.

• Interlock mode: Full electronic solenoid interlock with indicator lights & alarm buzzer, only one door can open at any time to maintain air lock function.

• Optional door upgrades: Automatic sliding door, fast rolling shutter door for large cargo air shower tunnels.

3. Purification Air Circulation System

1. G3 Primary Pre-filter: Washable polypropylene fiber media, intercepts coarse dust to extend HEPA service life, easy front-side replacement.

2. H13/H14 HEPA Filter: Mini-pleat fiberglass media, ≥99.99% @0.3μm filtration efficiency, captures micro-particles and bacteria; optional differential pressure port to monitor filter clogging.

3. Low-noise high-pressure centrifugal blower: Stable airflow output, low vibration to avoid secondary particle shedding.

4. Stainless steel adjustable nozzles: 12 / 18 / 24 / 84 pcs per unit (varies by size), 180° rotation to cover full body & cargo surface without blind spots.

4. Intelligent PLC Control Panel

• Digital touch screen with adjustable shower countdown (1–99s), lighting delay, voice broadcast prompts for operation guidance.

• Infrared automatic induction startup, emergency stop button for safety.

• Optional functions: UV germicidal lamp for off-hours cavity disinfection, ESD anti-static treatment for electronics fabs.