Demand PAPR

For the most demanding conditions

Positive-pressure demand PAPR for CBRN applications
SE40 is the world’s first positive-pressure demand PAPR approved as a CBRN PAPR
Also approved according to European Standard


  •  True positive pressure at 400 litres/minute
  • Breath-responsive demand operation
  • 50% less filter consumption than continuous-flow fans
  • Loud and clear voice communication
  • Single-button operation
  • Microprocessor-controlled motor
  • Continuous self-diagnostics
  • Extensive range of protective suits and hoods
  • Wide variety of practical accessories

Data Sheet

Positive-pressure demand respirator for CBRN environments

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  • Description: Fan-supplied, positive-pressure, breath-responsive demand respirator for CBRN (chemical, biological, radiological, nuclear) atmospheres. The respirator is microprocessor controlled and supplies positive pressure breathing air even at very hard work. The SE40 features in-mask communication, a comprehensive warning system, and a usage log which can be downloaded to a personal computer for further analysis.
  • Usage: Used for SCBA-level protection (with full face mask) in filtrable, non-IDLH atmospheres with an oxygen content suitable for human breathing. Intended for CBRN applications.
  • Face pieces: Full face mask in halo-butyl rubber with hard-coated polycarbonate visor and natural rubber head harness.
    The face pieces contain no electrical parts, and feature an internal pressure sensor, internal non-electric microphone, and a warning light in the wearer’s field of vision. (Electronics for pressure sensor, microphone and warning LED are contained within the fan unit.)
  • Regulator
    • Flow capability of peak inhalation air flow in the inner ori-nasal mask of 400 l/min or higher
    • Breath responsive: air supply continuously adjusts itself to user’s air requirements
    • 7 to 14 mbar supply pressure
    • Easy service — no tools
    • Tested for equivalent of 3 years’ harsh conditions
    • Acts as negative pressure filter respirator if the fan unit is not operating
  • Voice communication: All face pieces have an in-built microphone which connects through the fan unit to an external miniature amplifier/loudspeaker
  • Fan unit
    • Single button operation
    • Auto power-off when removing mask
    • LED light indicators
    • Com-port for loudspeaker or personal computer
    • Brush-less DC motor
    • Continuous monitoring of motor function
    • Microprocessor controlled motor
    • Demist mode provides the user rapid supply of extra air for 20 seconds that not only cools the user’s face but also demists the visor of the full face mask
  • User alarms: The user immediately receives both audible and visual alarms (through a siren and a warning light in the user’s field of vision) upon a range of events, such as:
    • Filter change required
    • Low battery power
    • Mask pressure dip
    • Various other system alerts
  • Power supply
    • 2-hour battery recharge
    • Ni-Mh battery technology — no memory effect
    • Approximately 4 hours’ operation at medium work load
    • Microprocessor controlled battery charger for long life and battery maintenance
    • One battery supplied with unit
  • Data log, Software: Fan unit continuously records and time-stamps all vital system information, including:
    • All alarms issued
    • Total air volume drawn through the filters
    • Power on/off
    • Mask removed
    • NOTE: The use of the data log feature is completely optional, and is in no way necessary for the general operation of the SE40
      Data log and real-time system monitoring software is included as a simple-to-use Windows application
  • Computer interface: Standard serial port
  • Carry devices: The unit is worn on a back pack with padded shoulder straps and waist harness. The unit may also be worn on a conventional waist belt.
  • Weight
    • SE40 with back pack, single battery and CBRN filters: 5.0 kg
      CBRN components
    • Exhalation valve shield
    • Tychem F disposable breathing hose cover
  • Transport case: The unit is supplied with a robust canvas carry case for protection during storage and transport.
  • Warranty: The SE40 is supplied with a comprehensive warranty, covering the motor and the main circuit board for three years or 6,000 operating hours, whichever comes first. Other parts are covered for 12 months for manufacturing faults (not including wear and tear). Some exclusions apply.



User Instructions

Data Sheet