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Indoor Air Quality Testing (IAQ)

Indoor Air Quality Testing

A healthy indoor environment has never been more important. The quality of the air we breathe in our workplace can make a huge difference to our health and wellbeing. Poor indoor air quality has been tied to a range of health problems including:

  • eye, nose and throat irritation

  • the sensation of dry mucous membranes and skin

  • hoarseness, wheezing, coughs and frequent respiratory infections

  • skin rash and itching

  • headaches and mental fatigue

  • nausea and dizziness


Also, some diseases have been linked to specific air contaminants or indoor environments, for example asthma caused by damp indoor environments.  

  • Approximately 3.8 million people around the world die every year as a result of indoor air pollution

  • Particulate matter is the cause of numerous respiratory ailments including asthma, respiratory inflammation, decreased lung function, and cancer

  • Low-quality air reduces human productivity and our ability to process information

Indoor air pollution is consistently ranked as one of the top five environmental risks to public health.

The more commonly recognised term, Sick Building Syndrome (SBS) is the name given for symptoms workers only get while they are at work in a particular building, such as an office. SBS is likely to be due to a combination of two factors; physical and environmental factors, and job factors.


Many factors affect indoor air quality, for example poor ventilation (lack of outside air), problems controlling temperature, high or low humidity, recent remodelling, and other activities in or near a building that can affect the fresh air coming into the building. Sometimes, specific contaminants like dust from construction or renovation, mould, cleaning supplies, pesticides, or other airborne chemicals (including small amounts of chemicals released as a gas over time) may cause poor indoor air quality.

MEC's expertise in recognising workplace health hazards and evaluating the magnitude of exposure means we can guarantee proportionate advice on how to control workplace health risks. Indoor air quality testing falls into the assessment of environmental factors and may involve the measurement and assessment of:

  • Temperature and excessive temperature variations during the work shift

  • Humidity

  • Sampling indoor air pollutants, for example carbon dioxide, carbon monoxide, volatile organic carbons (VOC's), formaldehyde and nitrogen oxides 

  • Rates of air movement

  • Dust particles in the atmosphere

Our key objective when supporting our customers' is to assist in safeguarding employee health, whilst at the same time ensuring their business remains productive as well as helping them maintain compliance with relevant regulations and guidance.


Over 20 years'


MEC offer a broad range of occupational hygiene services across all sectors of industry

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