Do you open windows daily if possible even if for a few minutes? I like fresh air and try to keep the house as close to the outside temperature as possible to help my body adapt. Also the inside of a persons home or apartment is constantly off gasing various substances, chemicals, gases etc so opening the windows helps some of that dissipate. Much of nature and manufactured things are in a constant state of decay which are many of those smells that don't want to leave. One is not just smelling something they are breathing that in.
Any way are you a window opener.
Any way are you a window opener.