Technology
How clean is the air in your office? – Yahoo News Australia
Due to Covid, and many of us hoping to return to the office in 2021, workplace air quality is a growing concern.

Prior to Covid, most of us only thought of an office’s ventilation system if it was too hot to too cold, or when it broke down
Raefer Wallis is a man very much in demand.
An unassuming Canadian, he is widely regarded as a leading global expert on healthier buildings, and specifically, the quality of their interior air.
Due to the coronavirus pandemic, he says he has seen requests for his services from around the world soar tenfold this year.
“Since Covid the rush for indoor air quality improvements…
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