This summer I developed adult-onset asthma.  Because of the forest fires, the terrible smoke and the wind (not to mention the heat), I was having a very difficult time breathing. I couldn’t leave my house!  Thank goodness I just turned on the Mitsubishi air conditioners with the air filtration system and I could breathe again!  The house stayed cool and comfortable. In fact, it worked out so well, I just ordered another unit for the guest room and hallway.