Air Shower Tunnel Systems
HEPA-Filtered, Pressurised Air-Blast and Interlock Door Solutions for Cleanroom Entrances
Air shower tunnel systems are personnel decontamination solutions used at cleanroom, laboratory, hygienic production and controlled-area entrances to reduce the transfer of hair, dust, particles, soil and similar contaminants into clean areas.
With pressurised air-blast nozzles, a G3 pre-filter, H13 HEPA filter, PLC control, touchscreen, interlock door system, Magnehelic pressure gauge and stainless-steel body options, they provide safe, controlled and hygienic access at cleanroom entrances.
20 / 25 m/s Air Velocity
Adjustable stainless-steel nozzles help remove particles present on personnel.
H13 HEPA Filter
HEPA filtration passes the air used inside the air shower through high-efficiency particle filtration.
Interlock Door System
Provides controlled access by preventing the entrance and exit doors from opening at the same time.
What Is an Air Shower Tunnel?
An air shower is a filtered, high-velocity air-blast system used to reduce the particle load on personnel before they enter a cleanroom or hygienic production area. When a person enters the cabin, the doors are controlled by the interlock system and filtered air is blown from the nozzles for the set period.
It can be implemented as an air tunnel in areas with multiple personnel passages. For narrow locations, a special air shower with services positioned in the ceiling can be tailored to the project with options such as a shoe-cleaning unit, ioniser, automatic door, soft ramp and pressurised rain spray system.
Air Shower Tunnel Operating Principle
Personnel Entry
The person enters the air shower cabin and the entrance door closes.
Interlock Control
The doors are locked by the interlock system, preventing simultaneous opening.
Filtered Air Blasting
Air passing through the G3 pre-filter and H13 HEPA filter is blown at high speed through stainless-steel nozzles.
Entry into the Clean Area
Once the configured operating time is complete, the exit door opens and the person enters the clean area.
Key Technical Features
AISI 304-grade stainless-steel body option.
Directed air blasting with stainless-steel adjustable nozzles.
Effective particle removal with 20 / 25 m/s air velocity.
Electrical and electronic installation can be designed with a PLC system infrastructure.
Fan operating time and interlock time can be adjusted.
Filter contamination can be monitored with a Magnehelic pressure gauge.
Air Shower Technical Information Table
| Technical Feature | Value / Description | Application Note |
|---|---|---|
| Product type | Air shower / air tunnel | Used for personnel decontamination at cleanroom and hygienic area entrances. |
| External cabin dimensions | 1000 x 1500 x 2200 mm | Should be considered as depth x width x height. |
| Internal cabin dimensions | 950 x 800 x 2060 mm | Standard internal dimensions for personnel passage. |
| Material | AISI 304-grade stainless steel | Provides an easy-to-clean and durable body for hygienic areas. |
| Nozzles | Stainless steel, adjustable type | Provides air blasting from different directions around personnel. |
| Air velocity | 20 / 25 m/s | High-velocity air blasting for effective particle removal. |
| Fan operating time | Adjustable, 10 / 30 sec | Can be adjusted via the touchscreen or automation panel. |
| Doors | Stainless-steel pivot doors with interlock locking system, opening to 90° | Provides controlled and safe passage. |
| Control system | PLC system | Manages door interlock, fan duration and alarm functions. |
| Internal lighting | Spot lighting | Provides comfort during cabin use. |
| Filter contamination indicator | Magnehelic pressure gauge | Enables monitoring of filter pressure loss. |
Filter System Technical Table
| Filter Type | Efficiency / Class | Function |
|---|---|---|
| G3 panel filter | Average dust-arrestance efficiency: 80% – 90% | Helps protect the HEPA filter by retaining coarse dust. |
| HEPA filter | H13 class | Provides high-efficiency particulate filtration for clean-air blasting. |
| HEPA performance | Minimum efficiency at 0.3 microns; DOP 99.997%, MPPS 99.95% | Helps reduce the particle load at cleanroom entrances. |
Model and Application Options
| Option | Description |
|---|---|
| Standard air shower | A standard cabin-type air shower solution for single-person passage. |
| Ceiling-service type | Can be designed with services located in the ceiling for narrow areas. |
| Tunnel-type air shower | An air tunnel system with a longer passage route can be implemented for multiple personnel passages. |
| Entry / exit on the same side | Can be designed for entry and exit on the same side according to local layout conditions. |
Optional Modules and Additional Units
Helps reduce electrostatic dust adhesion by neutralising static electricity.
Can be preferred in areas requiring touch-free and controlled passage.
A shoe-cleaning unit can be integrated into the air shower floor.
An ioniser can be added to prevent electrostatic dust.
Soft ramps facilitating passage can be applied in front of and behind the air shower.
A pressurised rain spray system can be integrated for personnel washing.
Structure, Door and Material Options
Warranty and Certifications
Can be assessed within product safety and conformity requirements.
Documentation support can be provided for design and product development.
The standard warranty period can be evaluated as 24 months.
Areas of Use
Air Shower Tunnel Advantages
Application Note
When selecting an air shower or air tunnel, the cleanroom class, personnel traffic intensity, cabin size, air velocity, filter class, interlock time, door type, body material, shoe-cleaning need, ioniser requirement, automation level and installation area should be evaluated together.
Get Technical Support for Air Shower Tunnel Selection
Air shower systems should be designed according to traffic intensity, cleanroom class, body material, filter configuration, door interlock system and optional module requirements.
You can request a project-based technical assessment for air shower / air tunnel solutions for cleanrooms, laboratories, pharmaceutical, food, electronics and medical production areas.
