Truck exhaust in rural Oregon- those areas are the closest thing to silent hill when the fog rolls in the morning, and that fog I swear makes the smell thicker, it’s sappier when the diesel is soaked in rain
Certain dry erase marker- the best have generic branding or none at all just from palm erosion , frayed & half-way to dry. They smell like ripe pear & Isopropyl. that’s when it’s perfect.
“Too clean“ air- it happens every once in a while but it will be a slightly medical or clinical, usually a little bit of bleach but off a very specific floor in your childhood(always linoleum) and then it’s there and you remember all the things that got attached to it but before you can figure out the notes it’s gone.
Payless plastic- the sometimes overwhelming artifical smell of a department store has it too
The pink soap- I used to milk doctors offices and public restrooms like dairy cows into ziplock bags so I could have it at home. its Good soap.
Skinny cigarette: capris & Virginia slims have that specific creamy black tea element when you smoke and or smell them, I think slims should also be incense.