Where it comes from
Applying energy devices to tissue can generate a plume known as surgical smoke. Examples include electrosurgery and laser procedures. Composition depends on the equipment, technique, tissue and duration of the procedure. Emission may occur even when part of the plume is not visible. This hazard should not be confused with leaking anaesthetic gases, which require their own assessment and controls within the healthcare environment.
What hazardous components mean
The plume may contain fine particles, chemical compounds and biological material. Detecting a component in one study does not demonstrate that all procedures produce the same concentration or risk. Avoid simplified cigarette equivalents or attributing every illness to this exposure. Uncertainty about some health effects does not remove the need to reduce an avoidable respirable emission. Findings should be interpreted in the context of the actual procedure.
Identify exposed people and procedures
Assessment should record which devices generate a plume, for how long, where each professional stands and how ventilation operates. Include outpatient surgery, consulting rooms and veterinary procedures where relevant. Cleaning and servicing evacuation systems also need consideration. Mapping tasks helps prioritise points where capture close to the source can reduce several people’s exposure simultaneously, rather than focusing only on the person holding the instrument.
Capture at the source
Local exhaust ventilation aims to remove the plume before it crosses the breathing zone. Extraction may be incorporated into the instrument or supplied by a dedicated evacuation system. Select and position it for the procedure in accordance with manufacturer instructions. General room ventilation serves other purposes but does not automatically provide effective capture of an emission at the point where it is generated.Filtration, waste and actual use
Equipment must suit the contaminants and the destination of the extracted air. A particle filter does not necessarily remove gases and vapours. Plan consumable replacement, waste management and performance checks for the actual system. Address noise, ergonomic or handling difficulties that could encourage disconnection; owning a smoke evacuator kept in storage does not mean daily exposure is controlled. Practical training should include setup and reporting of faults.
Additional protection and follow-up
A surgical mask alone should not be treated as a solution for every component of the plume. Where assessment requires respiratory protection, select it for the hazard and integrate it with other controls. Record failures and review new procedures. Reduced odour can be a useful observation but is not a safety measurement and does not demonstrate removal of every component. Evaluation should focus on reliable, sustained control.
