On Aug 11, 12:45*am, Robinkae wrote:
My in-laws installed carpet in their home 30 years ago. *It was high
quality and vacuumed regularly; it still looks good. *However, they
have never had the carpet professionally cleaned in any way (either
steamed or shampooed). *We may inherit this home one day. *By then the
carpet will be 40 or more years old. *Are their any health or
cleanliness problems we should be concerned about?

I can't think of any health hazard but would probably have house
professionally cleaned when empty. A new carpet actually presents
higher health hazards while fumes from the manufacturing process
clear.

Frank