What No One Tells You About the Air Inside Your Workplace

Most people, when they think about air pollution, picture traffic fumes or factory chimneys. Not the office they have been sitting in since nine this morning. But the air inside the average UK workplace is very likely worse than the air outside it, and the vast majority of people working in those buildings have no idea.

The Numbers Are Hard to Ignore

Research by the US Environmental Protection Agency found that indoor air pollutant concentrations in commercial buildings are regularly two to five times higher than outdoor air. Closer to home, UK indoor air quality was measured as poorer than outdoor air for eleven out of twelve months in 2022. For a closer look at the UK-specific data, the IAQ Services indoor air quality statistics blog is worth a read.

Why the Symptoms Are So Easy to Miss

Poor indoor air quality tends to disguise itself as something else. Persistent headaches, dry or itchy eyes, difficulty concentrating, a blocked nose, low-level fatigue that does not shift after a decent night's sleep. Most people blame stress or a busy week. Very few look up at the dusty ventilation grille above their desk and join the dots. A cluster of people on the same floor experiencing the same vague recurring symptoms is rarely a coincidence.

What Is Actually Building Up in There

The contents of a poorly maintained ventilation ductwork system are, to put it plainly, grim. Dust, dander, pollen, mould spores, bacteria and volatile organic compounds from furniture, carpets and office equipment all circulate through the same system that is supposed to be keeping your air fresh.

This is exactly the kind of issue that Clean Air UK deal with day in, day out. Operating across Kent, London and nationally, they provide ventilation ductwork cleaning, indoor air quality testing and full air hygiene assessments for commercial buildings, all carried out to BESA TR19 standards with documented compliance reports.

What the Law Actually Requires

For anyone responsible for a commercial building this is also a legal matter. Regulation 5 of the Workplace (Health, Safety and Welfare) Regulations 1992 requires mechanical ventilation systems to be cleaned as appropriate, and Regulation 6 requires every enclosed workplace to be supplied with sufficient fresh or purified air. The Health and Safety Executive's guidance on workplace air quality sets out what compliance looks like in practice and is worth reviewing if you manage or lease a commercial space. Ignoring it can lead to enforcement action and financial penalties that far outweigh the cost of an assessment.

What to Do Next

Pay attention to the patterns. Stuffy air, lingering smells, a suspiciously high number of staff reaching for paracetamol at midday. A proper air hygiene assessment will tell you exactly what is going on rather than leaving you to guess. The air in your workplace has a bigger impact on how your staff feel and function than most businesses give it credit for.