The new house was so cool, however even though it was legitimately old, dating back to the late 1780s, it had been well kept over the years… Some seasoned houses look ramshackle, however this 1 was quaint & classy. The only issue I had after moving in was with our flu symptoms, which seemed to get much worse in the new house. I am prone to flu symptoms anyway, so I take many weekly meds for it, however this was something I hadn’t encountered before. I decided the first step should be to contact a local Heating & A/C supplier & have them test our air quality. Two nights later a charming young Heating & A/C tech arrived on our doorstep with a satchel full of testing equipment. It took a few hours, because she did a thorough inspection of the central proposal & all of the ductwork, as well, then her results were conclusive – our flu symptoms were being exacerbated by a preponderance of rodent feces & hair in the ventilation system. She could find no traces of rats or mice currently living in the HVAC ducts, however at 1 point they had. All of the dander & germs they left behind were still haunting the HVAC ducts, & killing the air quality for the whole house. Since the rodents were gone, the Heating & A/C tech had a quick repair for me, because all I needed was a deep cleaning of the ventilation system. I actually hope she is right, & after the HVAC ducts & air vents have all been cleaned & sterilized then our flu symptoms will stop kicking our butt so hard.