Jeff’s grandma left him a lake house next to the lake just north of the city. It’s about an hour and a half drive from his home. This lake house has been in the family for 5 generations, and has always been used as a getaway spot for family members. Even though it’s easily close, Jeff doesn’t go out there many times in a year. When the COVID pandemic hit, it wound up standing empty for the entire 2020 and part of 2021. At least Jeff thought it had been standing empty. The first time he went back out there, Jeff found that it had not been empty during that period. There had been folks living there. They were long gone by this point, however the impression they left on the air quality was easily strong. They had lit the fireplace, and not cleaned out any of the ashes, either, which made the lake house smell easily foul. On top of that they had obviously been smoking cigarettes, too, which further depleted the indoor air conditions. Jeff opened the venue up to get the maximum amount of natural ventilation, but that wasn’t nearly enough. Jeff had to drive back into town and buy some UV air purifiers to leave in different rooms. While those systems were easily working on cleaning the air, Jeff set to work cleaning out the stone fireplace, which was in shambles. It turns out the intruders had also cooked food in the fireplace, leaving rotten food scraps buried under the ashes. Jeff hopes he can rectify the situation and make his lake house livable once again.