Air shower systems are critical entry points for contamination control in cleanrooms. This comprehensive guide covers selection, installation, and maintenance best practices.

How Air Showers Work

Air showers use high-velocity HEPA-filtered air to remove particles from personnel before entering clean areas:

• Automatic door systems prevent cross-contamination
• Multiple nozzles provide 360-degree coverage
• Air velocity typically 20-25 m/s for effective particle removal
• Cycle times adjustable from 0-99 seconds

Types of Air Showers

Different configurations for various applications:

• Single Person: Compact design for individual use
• Double Person: Wider chamber for two users simultaneously
• Tunnel Type: Continuous flow for high-traffic areas
• Material Air Lock: Designed for equipment and materials

Installation Best Practices

1. Position at cleanroom entry point with proper sealing
2. Ensure adequate space for door swing and user movement
3. Connect to cleanroom HVAC system for pressure balance
4. Install emergency stop button for safety
5. Test all sensors and door interlocks before commissioning

Maintenance Schedule

Regular maintenance ensures reliable operation:

• Weekly: Check door operation and sensor function
• Monthly: Clean nozzles and interior surfaces
• Quarterly: Replace pre-filters
• Annually: Replace HEPA filters and inspect fan motors