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Product Features
  • Approved to EN137:2006 Class I
  • Extremely lightweight backplate
  • Proven Tempest Demand Valve
Delivery options

At Cadmus Products we aim to deliver orders efficiently and at highly competitive rates. 

  • We can ship consignments of all shapes and sizes and hazardous content across the UK and worldwide. Most of our orders are sent via DHL, however sometimes we may use other couriers.
  • If you are purchasing a laboratory product online you can find out the price of shipping checkout. If you are obtaining a quote for a product, then we will email you
    with our best shipping prices along with your quote.
  • Please see our delivery page for full information

3M Scott Safety ACSi Self-Contained Breathing Apparatus


The 3M Scott Safety ACSi builds upon the sucsesses of the Contour SCBA range, combining comfort and performance with low through-life costs. The ACSi integrates Thermoflex technology and revolutionary pneumatics systems to result in a high quality SCBA product.

The Scott ACSi is an open circuit, self-contained, compressed air breathing apparatus. It consists of a back plate, padded carrying harness and pneumatic system, containing a cylinder connector, reducer, pressure gauge, whistle and demand valve.

The ACSi can be configured in a number of different ways with various size single cylinders. There are also a range of variants available including Airline (AC), and Split Demand Valve Coupling (SDC).

The ACSi is used in conjunction with a range of composite or steel cylinders and the choice of Vision 3, Panaseal, Panavisor or Promask PP facemask.

  • 2018416 ACSI ACSi self contained breathing apparatus for single cylinder use, comprising lightweight flexiblebackplate with cylinder band and fully adjustable padded body harness.
  • 2018417 ACSI-AC ACSi fitted with Airline attachment*
  • 2018418 ACSI-SDC ACSi fitted with Split demand valve
  • 2018419 ACSI-AC-SDC ACSi fitted with Split demand valve and Airline attachment*
  • 2018866 ACSI-Y2C ACSi fitted with Y-piece (2 CEN socket) in demand valve hose
  • * Please note the airline attachment has both air in and air out functionality so therefore serves as both an RSM and decontamination attachment as wellas Airline.
  • 2018708 2018708 I/M User Instruction manual - Single
  • 2018908 2018908 Demand Valve hose clips - Pack of 10
  • 2018907 2018907 Pressure gauge hose clips - Pack of 10
  • 2020206 2020206 Chest Strap i/m
  • 1035685 089.124.00 Testkit & toolkit combined (not including 074.285.00) - Contour/Propak/ACS
  • 1035686 089.124.01 Testkit only - Contour/Propak/ACS
  • 1033779 074.083.00 Toolkit only - Contour/Propak/ACS
  • 1023116 035.016.03 Cylinder pressure test gauge 200/300 bar
  • 1034744 084.059.00 Breathing apparatus log book - Fire Brigade version
  • 1034745 084.059.01 Breathing apparatus log book - Industrial version
  • 2014810 2014810 Moulded B.A. carrying case for 1 apparatus c/w cylinder
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