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Local Exhaust Ventilation and Dust Extraction Management

Extraction hoods and dust collectors are installed to capture fumes and dust at source, but on many sites they run at reduced flow, are ducted badly or are simply switched off. This course covers how local exhaust ventilation works, how to check that it is actually capturing contaminants and how to keep it performing over time. Examples draw on welding bays, woodworking shops, laboratories and process areas common in the region.

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What you will be able to do

  • Explain how local exhaust ventilation captures dust, fume and vapour at source.
  • Assess hood placement, capture velocity and duct design against the contaminant.
  • Carry out simple performance checks that reveal a failing extraction system.
  • Plan inspection, cleaning and filter maintenance schedules for extraction equipment.
  • Recognise when engineering controls must be backed up by respiratory protection.
  • Keep ventilation records that support occupational hygiene monitoring.

Course outline

  1. 01Principles of local exhaust ventilation
  2. 02Hoods, capture velocity and duct design
  3. 03Checking system performance in practice
  4. 04Inspection, cleaning and filter maintenance
  5. 05Engineering control versus respiratory protection
  6. 06Common extraction system failures
  7. 07Ventilation records and hygiene monitoring

Who should attend

Occupational hygiene practitioners, maintenance and facilities staff, production supervisors and safety officers responsible for extraction and ventilation systems.

Dates, venues and fees

DatesVenueDaysFeeCalendarRegister
28 to 30 Sep 2026Lilongwe3US$1,500Closed
29 Sep to 1 Oct 2026Blantyre3US$1,500Register
30 Sep to 2 Oct 2026Mozambique3US$1,500Register
5 to 7 Oct 2026Nairobi3US$1,500Register
6 to 8 Oct 2026Dar es Salaam3US$1,500Register
7 to 9 Oct 2026Kigali3US$1,500Register
12 to 14 Oct 2026Kampala3US$1,500Register
13 to 15 Oct 2026Accra3US$1,500Register
14 to 16 Oct 2026Lagos3US$1,500Register
19 to 21 Oct 2026Cairo3US$1,500Register
20 to 22 Oct 2026Mauritius3US$1,500Register
21 to 23 Oct 2026Dubai3US$1,500Register
26 to 28 Oct 2026Online3US$900Register
18 to 20 Nov 2026Johannesburg3R13,000Register
23 to 25 Nov 2026Cape Town3R13,000Register
24 to 26 Nov 2026Durban3R13,000Register
25 to 27 Nov 2026Pretoria3R13,000Register
30 Nov to 2 Dec 2026Windhoek3US$1,500Register
1 to 3 Dec 2026Gaborone3US$1,500Register
2 to 4 Dec 2026Maseru3US$1,500Register
7 to 9 Dec 2026Mbabane3US$1,500Register
8 to 10 Dec 2026Lusaka3US$1,500Register
9 to 11 Dec 2026Harare3US$1,500Register

Fees are per delegate. South African venues are priced in rand; other locations and online in US dollars. Fees exclude 15% VAT where applicable. Group bookings of three or more delegates from the same organisation qualify for a reduced rate; contact us for a quotation.

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