Three-quarter view of a compact air shower voice announcement module

Cleanroom Equipment Spare Parts

Air Shower Voice Module

A compact voice and tone module that provides clear audible instructions and cycle feedback inside a cleanroom air shower.

Clear Audible Prompts
Compact Speaker Enclosure
Controller Signal Input
Visible Status Indicators

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Product Introduction

The air shower voice module converts controller signals into spoken prompts or tones that guide personnel through entry, door and purge stages. Its enclosed speaker and perforated grille provide local sound without requiring a separate external amplifier enclosure. Colored indicators support basic service checks, while the pluggable terminal simplifies low-voltage wiring. Replacement selection should match supply voltage, trigger method, prompt sequence, required language and mounting space.

Key Features

Predefined voice messages can guide users through the air shower sequence.

The integrated speaker and protective grille form a compact self-contained unit.

Separate green and red indicators provide visible operating feedback.

A two-position pluggable terminal supports straightforward controller connection.

Customer Product Concerns

Audible guidance must remain understandable over blower noise and respond correctly to the installed controller sequence.

Users open a door too early because the shower stage is unclear.Timed spoken prompts identify entry, purge and exit stages.

Low output is masked by blower and nozzle noise.The speaker format and enclosure are selected for intelligible local announcements.

An incompatible trigger signal causes incorrect or repeated messages.The module input is configured to match the controller output logic.

Fixed-language prompts are unsuitable for different facilities.Message language and sequence can be configured for the intended users.

Typical Applications

Personnel air shower instructionsCleanroom entry sequence guidanceMaterial air shower audible alertsAir shower control-system refurbishment

Technical Parameters

Typical construction and dimensional ranges for compact air shower voice modules are shown below.

Core Material	ABS enclosure with dynamic speaker, voice playback circuit and status LEDs
Panel Thickness	35-75 mm nominal module depth
Effective Width	80-160 mm nominal enclosure width
Maximum Length	Up to 200 mm overall enclosure height
Steel Facing Thickness	0.8-1.2 mm optional internal speaker support plate
Core Density	1030-1200 kg/m³ for ABS enclosure material
Thermal Conductivity	0.17-0.25 W/(m·K) for ABS enclosure material
Surface Finish	Matte dark-gray enclosure with black grille and green/red indicators
Joint Type	Four-screw enclosure cover with integrated grille and pluggable terminal connection
Customization	Available based on the intended application and operating environment.

Available Options

Alternative prompt languagesCustom message sequenceMatched trigger voltageTone-only or voice-and-tone operation

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