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.
I'm sorry to report that it IS, TESTED ON ANIMALS. Caring Consumer // Search for Cruelty-Free Companies and Products // Febreze (Procter & Gamble). (That is the web site at which i found thi information, and you got to the second page of this list, and you will see.).