study, is that not all variables investigated showed a significant reduction in complaint level. In the main only those that a priori were assessed to be related to cleaner and more humid air were affected. Thus, we consider an effect of increased attention paid to the subjects to be of minor importance in the present study.
In conclusion, the present study indicate that plants in offices may reduce mucous membrane and neuropsychological discomfort symptoms markedly. Improved air-quality and/or a perceived nicer office environment may be the main explanations to these findings.
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