Opinion

An investment in clean indoor air would do more than help us fight COVID - it would help us concentrate, with lasting benefits

By Peter Martin
February 8 2022 - 6:25pm
Beyond 1000 parts of CO2 per million - and indoors, many times 1000ppm is common - our ability to concentrate starts to drop. Picture: Shutterstock

Sometimes the best things you can do are invisible.

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