The Avon Voice Projection Unit (VPU) is purpose-built to enhance verbal communication when operating in CBRN environments while wearing Avon C50 and FM50 respirators. Designed for seamless integration, the VPU and internal microphone connect directly through the mask’s Electronic Communication Port (ECP), ensuring safe and reliable operation in hazardous atmospheres.
Key Features & Benefits
Specifically designed for Avon C50 and FM50 masks
Direct connection via Electronic Communication Port (ECP)
Significantly improves speech intelligibility while wearing a respirator
Compatible with Voice Projection Unit Microphone or Microphone Assembly
Intrinsically safe design for hazardous environments
Safety & Certification
Intrinsically safe
Conforms to UL Standard 913
Class I, II, III
Division I
Groups A–G
Temperature Class T4
Not ATEX approved
Communications Integration
The Electronic Communication Port (ECP) enables more than just voice amplification:
Allows a VPU to be safely connected to an internal microphone in a CBRN environment
Supports connection of additional communication systems, including:
Personal radios
Vehicle intercom and communication systems (via appropriate interface leads)
Operational Advantage
By improving voice clarity and enabling integration with external communication systems, the Avon VPU enhances command, coordination, and situational awareness in high-noise or hazardous environments—without compromising safety or protection.