Hey guys, I have an odd question. I live in BC, and we've had a really bad year for wildfires, and the air sometimes it super thick with smoke. It's so bad that fire alarms get set off frequently. My BP is in a tub with only a few dozen holes soldered in, but I'm worried about his sensitive lungs. We keep doors and windows closed, but is there anything else that should be done to keep smoke away from him?