LSM QCABAIR® (pat.pend) Cabin Pressurisation / Filtration Commixing Plenum

OH&S Compliance

RCS (Respirable Crystalline Silica) is found at varying levels in all dusts, especially within the Mining, Quarrying, Construction, Agriculture, Cement, Crushing and Earthmoving Industries. However, compliance is not just about exposure to RCS but also providing protection against other harmful types of contamination "nasties" such as asbestos, nickel, alumina, coal, iron ore, pesticides, herbicides, etc. DPM (Diesel Particulate Matter) exposure is also a major concern and according to the ACS (American Cancer Society) and SafeWork Australia and is a Class1 Carcinogen. 

A major misconception is Enclosed Cabins on Fixed and Mobile Plant protect the Operator / Occupants against these harmful substances. In fact, concentration of contamination can be worse within the Cabin and can even far exceed the outside air quality.

Australian and International Standards (eg ISO 23875) require that all Enclosed Cabins must be equipped with Cabin Pressuriser / Filtration Systems and that they are configured to comply with:

• External Air Filtration: HEPA >H13 / H35 filtration class according to EN1822 / ISO 29463.
• External Air Filtration unit must provide fresh air to the HVAC Evaporator Plenum and must not be connected to the Cabin so as ambient air temperature is directly applied to occupants.
• Recirculation Air Filtration: HEPA >H13 / H35 filtration class according to EN1822 / ISO 29463. Recirculation Unit must conform to particulate inside the Cabin of <0.025 μg/ m3 at start / end of decay test, maximum of 120 seconds decay time.
• Exposure Levels: Cabin is to be periodically tested to ensure that occupant exposure levels are maintained at <0.05mg / m3 TWA for an 8-hour shift and 0.025 mg / m3 for a 12-hour shift (eg to Brief and Scala calculation). Definition of  HEPA to Australian Standards (refer AS 4260- 1997) is to provide an arrestance of particulate size >0.3 micron at 99.97% efficiency.
• Co2 Concentration: Maintain safe levels of Co2  below 700ppm (AIRHA) - excessive Co2 causes premature fatigue, lack of concentration, microsleeps, etc.
• Cabin Pressurisation:  Cabin pressurisation >20-50 pascal with the HVAC turned off and must not exceed 200 pascals.
• In- Cabin monitoring / Warning Device:  So a Cabin Pressurisation and Co2 levels are monitored with alerts / warnings of exceedance.
• Life Cycle Testing / Compliance Checks: Conduct routine performance testing of air quality control system throughout the lifecycle of the Cabin to maintain compliance. Testing cab pressure, CO2 concentration & External  + Recirculation filtration effectiveness at machine service intervals.

Features

A few of the specific benefits / advantages of our LSM QCabAir® (pat.pend) Cabin Pressuriser / Filtration Commixing Plenum are:

• Housing Design: The Core Mixing Plenum Commixing Plenum is made from 304 stainless steel and powder coated, reducing heat absorption in high ambient conditions and the Core Module will never rust or deteriorate.
• All Cabins: The QCABAIR® (pat.pend) Core Mixing Plenum can be easily mounted and used for both Fixed and Mobile Plant Cabins. 
• DOP Tested and Certified: Can be DOP Tested / Certificated to EN 1822 / ISO 29463 prior to being installed.
• Installation / Commissioning: As a single core assembly with External and Recirculation Air units using a single ducting into and out off the Cabin. The LSM QCabAir® is already pre- commissioned (DOP Tested) before leaving our workshop- installation and commissioning is quick and easy.
• Ease of Mounting:  Comes as a completed assembly as single Core Module - saves time for installation or can be easily provided as DYI kit.
• Single Ducting: Single Ducting connection into and from the Cabin to the LSM QCabAir® (pat.pend) Commixing Plenum.
• Standardisation for any Application: As all the working components are contained on the QCabAir® (pat.pend) Cabin Pressuriser / Filtration Core Commixing Plenum, then it can be easily adapted and mounted to virtually any machine
• Small and Low Weight Foot-print: The Core Module is light (under 25 kg) and has a small foot- print.
• Fully Transferable: Can be transferred easily from one vehicle to the other.
• Warranty: 3 years.

QCABAIR® Designed for your Cabin

Let our LSM Technologies Engineering Team complete a full as- built design for your Fixed or Mobile Cabin.

Our design engineers will provide you a simple LSM QCabAir® (pat.pend.) Cabin Pressuriser / Filtration System specifically to suite your Make / Model of machine or Fixed Cabin.

Simply they will use our "Leo" (3D Scanner) to create a model of the inside and outside the Cabin and, with a  bit of mensuration provide you with:

• Test and ensure compatibility for your chosen Filtration / Pressuriser Units
• Design a fit - for - purpose system configuration that exceeds Australian and International WHS compliance Standards and Guidelines for Workplace Exposure to Airborne Particle / Fibre.
• A system configuration that will be easy to service and low in maintenance and with all the above features and benefits.
• Consider OH&S for maintenance, filter element exchange, ease of access to your specifications.
• A complete onsite audit and the design drawing, include mensuration, is at no charge for local Brisbane.
• After the machine audit, we will produce an as- built detailed Drawing with full BOM
• We can then either install / commission, or the as- built design drawing is so detailed that you can even DYI.

See some examples of our LSM QCabAir® (pat.pend) Cabin Pressuriser / Filtration Commixing Plenum Systems.