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The COVID-19 pandemic has caused many homeowners to re-think indoor air quality.  After all, the Covid-19 virus spreads through droplets and aerosols—and people who are indoors or in enclosed spaces close to one another, are particularly at risk.  Washing hands, sanitizing surfaces, wearing face masks and keeping 2 metres apart have defined our COVID pandemic behaviour. But what happens when a visitor comes calling to your home?  Or when family and friends gather inside your house for the holidays?    When the weather turns cold, entertaining company outside on the patio is simply not practical for many Canadians. And it is not always possible to crack open a window to improve fresh air ventilation and air flow.    So back[...]

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