I live in a pretty wacko section when it comes to both weather & air quality. I can tell you that one day the air quality could be fantastic & the next it be really terrible. I can not afford to buy something care about a whole condo air purification method to go within my central heating & A/C unit. However, what I did do because of all this deranged stuff is go out & buy a few portable air cleaners. These portable air cleaners are the perfect thing to have on hand when you do not guess what the air quality is going to be from one day to the next around here. I also can tell you that the weather can be warm or cool one day to the next. Also it could be truly cold or extreme heat. When these things happen it makes myself and others grateful that I have one of the best & most top quality central heating & air conditioners on the market today. Having these kinds of things at my disposal makes living in the odd section I do tolerable. If it was not for all this fantastic heat & air conditioner technology along with the air purification technology, I would entirely just transport away from here. But because I have a fantastic central heating & A/C method & all those portable air cleaners, I am going to be just relaxing with it all for the time being.