Independent Air Pollution Control Engineers · South Africa

Stay Compliant.
Keep the Air Clean.
Keep Your Plant Running.

Clear Direction Environmental designs and details bag filters, ducting systems, and air pollution control equipment built for South African industry — helping foundries, cement plants, steel producers, and mining operations meet NEM:AQA requirements without costly downtime.

About Us
Decades of Experience.
One Clear Direction.
Clear Direction Environmental was founded by engineers who have spent their entire careers in air pollution control — and who decided the time was right to do things on their own terms.
With over 80 years of combined experience in bag filter design, ducting, cyclones, and APC project management, we've seen what works, what doesn't, and what South African industry actually needs. That hands-on knowledge is the foundation of everything we do.
We work independently — we're not tied to any equipment manufacturer or supplier. That means our recommendations are always based on what's right for your plant, your process, and your budget. Nothing more, nothing less.
Why Choose Us
Cutting-Edge Technology and Design for a Healthier / Cleaner Workspace and the Environment.
We service:
  • Arc Furnace Fume Extraction Systems
  • Foundry Dust Extraction Systems
  • Iron & Steel Desulphurisation Systems
  • Cement Plant Applications
  • Sinter Plant Dust Extraction Systems
For turnkey solutions, Clear Direction can project manage manufactures, erectors and other specialists.

Our Services

End-to-End Air Pollution Control — From Design to Support

Whether you're building a new plant, upgrading an existing system, or trying to get back into compliance, Clear Direction Environmental has the expertise to help. We offer a complete range of independent APC engineering services — all backed by 80+ years of hands-on industry experience.

1

Bag Filter Design & Detailing

Custom-designed fabric filter systems engineered for your specific process, dust type, and operating conditions. We produce full engineering drawings and specifications ready for fabrication.

2

Cyclone Design

Pre-separators and cyclone systems designed to handle high dust loads and extend the life of your downstream bag filters. Sized and selected for your specific application.

3

Dust Suppression Design & Detailing

Efficient water spray systems designed to suppress dust at truck tip applications, conveyor transfer points, and other materials handling operations. Depending on your process and site configuration, we design water-only systems, fine mist systems using compressed air, or water and chemical suppressant combinations — whichever best suits your application.

4

Wet Scrubber Design & Detailing

Wet scrubbers designed to maximise performance while minimising water consumption — important in a country where water usage is closely managed. We design across a range of applications from mining and materials handling to metal smelting and power boilers, including high-efficiency venturi scrubbers and medium-efficiency multi-vane units with recirculating water systems to keep operating costs low.

5

Ducting System Design

Efficient, well-designed ducting is critical to system performance. We design ducting layouts that minimize pressure drop, prevent blockages, and are practical to install and maintain.

6

Turnkey Project Engineering

End-to-end engineering support from concept development and 3D layout to fabrication-ready detailing for air pollution control installations across South Africa. We align scope, interfaces, and deliverables to reduce site rework and accelerate commissioning.

7

Retrofit & Upgrade Solutions

Older system underperforming or failing compliance? We assess your existing equipment and design practical, cost-effective upgrades — without replacing everything from scratch.

8

Compliance Assessments

Not sure if your current system meets NEM:AQA requirements? We carry out independent assessments of your air pollution control equipment and provide clear, actionable recommendations to bring you into compliance.

9

Spare Parts Supply

Filter bags, cages, valves, and other APC consumables sourced and supplied to keep your system running. We help you identify the right parts and avoid costly downtime.

Standard Specialty Filters

BV12-SP Bin vent filters

Clear Direction Environmental’s BV12-SP Bin Vent Filters are purpose-built for reliable bin and silo venting, providing consistent dust control in demanding process environments. With a focus on practical design and detailing of bag filters for South African conditions, the BV12-SP supports safer workplaces and cleaner air with straightforward installation and servicing. These filters can be side mounted, upstand mounted or just inserted straight onto a silo flange.

BV24-SP Bin vent filters

Clear Direction Environmental’s BV24-SP Bin Vent Filters are purpose-built for reliable bin and silo venting, providing consistent dust control in demanding process environments. With a focus on practical design and detailing of bag filters for South African conditions, the BV24-SP supports safer workplaces and cleaner air with straightforward installation and servicing. These filters can be side mounted, upstand mounted or just inserted straight onto a silo flange.

Special filters designed to suit client's requirements

Our Specialty Filters provide tailored filtration solutions for unique process conditions and site constraints. Backed by Clear Direction Environmental’s expertise in bag filter design and detailing, each solution is specified to suit your operational requirements while maintaining durable construction and dependable air pollution control performance.

Contact


 Allan@cleardirectionsa.co.za

  • 3 Jatinga Lodge, Kitaar Street, Radiokop, Roodepoort, 1724
  • P.O.Box 1952 Randpark Ridge 20156
  •  Mon-Fri - 08:00-17:00

David Crosthwaite 082 566 0338 David@cleardirectionsa.co.za Allan Wallace 082 770 4677 Allan@cleardirectionsa.co.za

Project Experience

     

 In 2010, our team completed a comprehensive audit of 51 air pollution control plants at ArcelorMittal Vanderbijlpark — covering 21 electrostatic precipitators, 18 bag filters, wet scrubbers, and cyclones. The project delivered a full report including operating instructions, maintenance recommendations, and future upgrade requirements. 

ArcelorMittal Vanderbijlpark
Major Project Reference — APC System Audit & Upgrade
     

 Site management and commissioning of a major smelter furnace air pollution control system for BHP Billiton — one of the most technically demanding APC projects in the South African metals industry. Additional international project experience includes electric arc furnace fume extraction commissioning in Saudi Arabia, and APC projects in Italy, China, Botswana and Argentina. 

BHP Billiton & International Projects
Major Project References — Metals & Smelting Industry
     

 David Crosthwaite has 41 years of experience in Air Pollution Control and has completed major projects for ArcelorMittal, BHP Billiton, ESKOM, Hillside Aluminium, and Samancor — across bag filter design, furnace fume extraction, wet scrubbers, and dust suppression systems. 

David Crosthwaite
Co-Founder & Lead Engineer, Clear Direction Environmental