Well, my grandma has told my grandpa that there is no more burning allowed, at least until he figures out a way to keep the smoke from the air. My grandma (who is pretty much the best gramma ever) has emphysema and uses an oxygen concentrator around the house. Obviously she is very sensitive to pollen, smoke and just about every other allergen in the world. THe problem though, is that Poppie is very attached to burning his wood and everytime I talk to him, I can hear that is a little bit more blue that it's been over a month now since she's let him run the stove. He's hoping an air purifier will remove the smokey and any other contaminants from the air and allow him to resume burning again. Anyone have a purifier? Can anyone recommend a brand?