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Regulations governing exhaust gas extraction in garages

Written by Lino Di Betta | August 22 2025

A mechanical workshop is an environment where worker safety and health are top priorities. One of the major challenges is the management of exhaust gases produced by vehicles, which contain harmful substances. But which regulations govern the extraction of these elements? And how can these requirements be translated into practical and effective solutions?

In this article, we explore the key aspects of the regulations concerning fume and gas extraction, providing a practical guide to ensuring a safe and compliant working environment.

Why is exhaust gas extraction essential in a workshop?

Before delving into regulatory details, it is crucial to understand the importance of an efficient exhaust gas extraction system. Vehicle exhaust gases contain carbon monoxide, nitrogen oxides, unburned hydrocarbons and particulate matter, all of which are highly harmful to human health. Prolonged exposure to these substances can cause respiratory problems, headaches and, in the long term, more serious illnesses, potentially even leading to death.

An adequate extraction system not only protects employee health, but also helps keep the workshop clean, improving overall air quality and workplace comfort.

Italian regulations for air extraction and air renewal

 In Italy, workplace health and safety are primarily regulated by Legislative Decree No. 81 of 9 April 2008 (known as the Consolidated Act on Health and Safety at Work). This decree establishes a series of obligations for employers, including the requirement to assess all risks present in the workplace and to adopt the necessary preventive and protective measures. 

Air renewal regulations: a fundamental pillar

Legislative Decree 81/08 places particular emphasis on air quality in working environments. Although it does not specify exact limits for each individual pollutant (often referring instead to technical standards or specific guidelines), it imposes the obligation to ensure adequate ventilation and air renewal.

In environments such as mechanical workshops, where pollutants are generated, this translates into the need for systems capable of diluting and removing harmful agents.

  • Article 68 (Workplace requirements): highlights the importance of adequate ventilation, whether natural or mechanical, in workplaces.
  •  Article 225 (Technical, organisational and procedural measures): requires that, for chemical agents, appropriate measures be adopted to minimise risk, including the use of localised extraction systems. 

     

    Specific requirements for exhaust gases

With regard to regulations specifically related to vehicle exhaust gases, although there is no single article detailing requirements specifically for the automotive sector, the application of the general principles of Legislative Decree 81/08 implies that:

  • localised extraction systems must be installed, capable of capturing gases directly at the source (i.e. from the vehicle exhaust) before they disperse into the environment
  • these systems must be efficient and properly sized according to the type and quantity of gases produced
  • they must be subject to regular maintenance to ensure correct operation

Translating regulations into practical actions for the workshop

Understanding regulations is the first step, but how can they be translated into concrete actions?

1.  Risk Assessment (DVR): The Risk Assessment Document is the starting point. A qualified professional must analyse the workshop, identify exhaust gas emission sources and assess the risks to workers’ health. The most suitable solutions will then derive from this analysis.
2.  Installing the most suitable extraction system: For workshops, the most effective systems must be evaluated based on the workshop layout and space configuration. Below is a practical overview showing which needs each system type can address:
 System type   Application 
 Fixed system   Ideal for exhausting gases in workshops with irregular layouts, where work areas are unevenly distributed, often small or medium-sized 
 Sliding system   Ideal for exhausting gases in workshops with regular layouts, often larger facilities 
 Underfloor system   Ideal for workshops that need to keep overhead spaces clear or have aesthetic requirements 
 Mobile system   Ideal for small workshops with less frequent and more isolated applications 

3.  Ensuring adequate air renewal: In addition to localised extraction, it is essential to ensure sufficient general air renewal within the workshop, including through forced ventilation systems, to dilute residual pollutants and maintain a comfortable environment. 
4.  Worker training and information: Employees must be trained on the importance of correctly using extraction systems and on workplace safety procedures.

 

Choosing the right solution for your workshop

Relying on experienced suppliers specialising in exhaust gas extraction is essential. Companies such as WORKY offer solutions specifically designed for automotive workshops, engineered to comply with regulations while ensuring maximum efficiency and safety. From individual mobile units to centralised systems, the choice depends on many factors — and this is where experience plays a fundamental role.

Ensuring a healthy and regulation-compliant working environment is not only a legal obligation for a mechanical workshop, but also an investment in employee health and in maintaining a productive business.