Between the pollen and the dust, my mom used to get COPD attacks or COPD-like attacks, at least (the docs would always say maybe she has it maybe she doesnt) on the days when it was bad. We'd have to put her in a mask or stick her in a room with two air filters! It did help, though, but I found a humidifyer was really useful. It seemed to put vapor in the air that clung to the dust and stuff and helped it fall to the ground! Keep on keepin' on, DPM