Yeah - Sheetrock dust and hardwood sanding, etc.
My air handler is all rusted out from the bottom so I don't care if it goes kaput - its due for replacement. But I am concerned that the dust is flowing through the living area - don't want my kids to be breathing that - even if his bedroom is not directly in the path between the addition and the return, again, the living area is going to have a flow of this dust - right?
If so, should I buy a portable a/c - we had a high of about 92 degrees today in Northern NJ. More hot summer days coming.