Can you smell people’s houses on them?

I can usually smell when someone has just taken a shower, or sometimes i can smell like “food” smells on people, but my main concern is smelling like my house. Most of the time I cant smell people at all.

My house kind of smells like newspaper/stale sometimes. Its not an offensive smell in my opinion, but its still there and i wouldnt consider it “fresh.” Ive tried air purifiers and chlorine dioxide but nothing has worked long term.

Is this just something i should accept? Does anyone know the smell im describing?