I live in Canada too and we can only hope
. Just saying that there is more to worry about then your buildings tolerance, to weed. Yup we can only hope
. It also depends on where you live in Canada, re getting busted. Here they tend to bust you. 99.9% (a guess lol) would never think to grow without a filter. I take the odd chance with my filter age wise but I live in the country so no one here in colder months, like now lol. They've all gone home. I'm actually going to try and build one next week that I can load bulk charcoal in. You could hold off for a bit as oduor wont be to bad at the start.