My 90 something parents live on their own in their own home in the suburbs. My parents do the household cleaning chores on a regular basis. Mom refuses outside help for cleaning as she doesn't want the neighbors to think she can't keep a clean house.... [sigh].
Yet I am baffled by the odor I smell every time I enter their home. Even things they give me to take home have a similar odor.
When I take my parents to appointments or run errands with them, I don't notice the smell on them themselves.
Every time I enter their home, I keep the door opened a bit to get fresh air inside the house, until my parents closes the door...Mom's excuse is not to let the flies in... and Dad's excuse is he's not paying to heat/cool the neighborhood :]
As I recall as a child, there were some older relatives homes that had a similar smell.