Without a provincial air quality standard, there is no way of knowing whether the air
within the property has been adequately remediated for such problems as leaky building envelopes, illegal grow - op activities or
high levels of continued
humidity that produce mould, says CREB.
But if these are the typical dryer found here in the USA, then the moisture is expelled through the exhaust vent; failure to properly vent these to the outside would lead to
high moisture /
humidity levels in the air
within the unit - one of the things that could lead to mold developing.