Professional Standards

EVS engineers have over 29 years’ experience in designing, supplying, installing, commissioning, testing and certifying all types of Local Exhaust Ventilation (LEV) Systems, General Ventilation Systems and Process Ventilation Systems.

The stringent accreditation standards set by professional bodies which EVS have obtained enable us to stand out in a tough industry, gaining an advantage compared to companies who do not hold the same level of accreditation.  We feel our level of accreditation is an endorsement of our professionalism and our commitment to ensure we adhere to UK standards and legislation and illustrates our understanding of the workplace requirements and regulations.

We hold the following BOHS (British Occupational Hygiene Society) Proficiency Certificates:

P601 – Initial Appraisal and Thorough Examination and Testing of Local Exhaust Ventilation Systems, Certificate No 290509/007
P602 – Design and Installation Principles of Local Exhaust Ventilation Systems, Certificate No 200309/006
P603 – Control of Hazardous Substances – Personal Protective Equipment, Certificate No 20151007-628-6174
P604 – Advanced Proficiency – Performance Evaluation and Management of LEV (Local Exhaust Ventilation) Systems, Certificate No 20150522-628-6056
W201 – Basic Principles in Occupational Hygiene

Professional and Affiliate Membership

British Occupational Hygiene Society (BOHS)

We are Affiliate Members of BOHS, demonstrating our commitment to ensure our services are provided with the very latest legislation, which we regard to be essential when offering recommendations for improving workplace health and safety for our clients.

Further information on accreditation can be obtained from:  and

Contractors Health & Safety Assessment Scheme (CHAS)

We are also CHAS accredited contractors, demonstrating compliance with sound management and implementation of current Health and Safety Legislation.

For further information visit the CHAS website:


We are proud to be accredited Safecontractor Approved Members, demonstrating our health and safety competence to new and existing clients. Upholding health, safety and welfare standards in the industrial ventilation sector is essential for us and our clients. We endeavour to show our clients that company policies and procedures are the best in the industry and accreditation to Safecontractor provides independent verification of this.  We are also verified within Safecontractor’s PQQ scheme, further demonstrating our commitment to an all-encompassing approach to compliance with pertinent policies and procedures.

For further information visit:

British Safety Council

EVS are members of The British Safety Council, further demonstrating our continuing commitment to Health & Safety in the workplace. The Council is a source of information and support, and provides a community of like-minded professionals with a common goal with which we agree – ‘no-one should be injured or made ill at work’.

Further information can be found at:

Chartered Institution of Building Services Engineers (CIBSE)

EVS are Affiliate Members of CIBSE, belonging to a global network of professional support and expertise.  Membership keeps us abreast of breaking news and a full programme of meetings and events each year enables us to meet and learn from colleagues and experts, to explore new ideas and take part in continuing professional development (CPD).

For further information visit:

Institution of Occupational Safety and Health (IOSH)

EVS are Members of IOSH, an organisation committed to creating a safer and healthier world of work and the only Chartered body for health and safety professionals.  As part of our ongoing Continuing Professional Development (CPD), we frequently utilise IOSH’s guidance and tools on a range of health and safety issues, including leading and managing Health and Safety and promoting safe working practices for our clients.
For further information visit:

Continuing Professional Development

We believe that continuing professional development is vital to progress our skills in the industry, and we see it as standard working practice for our engineers as well as our technical and administrative personnel. We provide a structured approach and the opportunity to widen knowledge, improve skills and demonstrate professional competence in all areas of our services.