Research into the effects of bad air quality in offices says so. Poor air quality is said to be responsible not only for poor cognitive performance but also health.

Researchers have reported in Environmental Health Perspectives that working in stuffy offices can halve cognitive scores. The news that half of office staff could be performing at half their normal mental capacity is unlikely to be well received by business owners.

Research found that simply opening a window or two to let in some fresh air can bring positive benefits, however this may not be possible in the depths of winter when staff may complain about the cold instead.

Yet if productivity levels are to reach their maximum it is clear that offices should be designed to expose people to at least some fresh air during the day. A fresh breeze might be all staff need to increase their production levels and brain functioning.

The study was limited to just 24 professionals, but it did include architects, designers and engineers. The study was conducted over 2 weeks in what was laid out as a typical office space. The study examined Co2 a VOC levels and how the gas impacts on performance.

Scores in tests were over 60% higher when conditions were set for these gases to be reduced indoors.