Let’s talk about the least glamorous houseguest of summer: that faint musty smell that shows up the moment the humidity does. Mold and mildew don’t need a dramatic flood or a burst pipe to move in, they just need damp air and a little time. And a Canadian summer, with its sticky July stretches, is an open invitation. Here’s the good news: mold and mildew can’t grow without moisture, so if you control the moisture, you control the mold. Better still, the tools that do it are mostly the set-it-and-walk-away kind (hooray!). So here’s what to reach for this summer to tackle both indoor and outdoor mold and mildew.