If Xt is a wide-sense stationary process then the mean Î¼ and the variance Ï2 are time-independent, and further the autocorrelation depends only on the lag between t and s: the correlation depends only on the time-distance between the pair of values but not on their position in time.
Febreze is classified as an air freshner, created by Proctor & Gamble. It reports to work by trapping odor molecules in a donut-shaped chemical. The first thing that is really important to understand: the product does not remove odor molecules and it doesn't clean the item it comes into contact with.
Smelly hampers, sticky rental cars, sleeping bags that reek of camp fire, you name the smell I have used febreze. You can get it at the supermaket. Another idea is to use a citrus odor neutralizing spray, I used this at a Salon I worked at to rid the place of perm smell. BB. A. If you have a forced air heating and cooling system with ducts, get the ducts checked.