This category includes any number of smells of manufactured types such as candles, soaps, perfume, etc. (Another example is paper without additional elements added!) These scents likely have natural influences, but would be from a candle or a soap rather than the object itself (or combination of objects).
Detergents fall into this category (being soaps), but more astringent cleansers (like bleach) would fall into a higher rarity class.
Again, things in this category are more supposed to be manufactured from natural ingredients, though we're sure some detergents and such become more artificial ingredient wise depending on source. Please ensure you're going with the spirit of this category when selecting scents!