Clearly you're a bit...uneducated.
All chemicals have a quality that is termed volatility.
It reflects how easily it becomes airborne. Thick oily substances are typically not that volatile. Hence although you can stick your hooter up to it and give it a whiff you won't be inhaling large quantities.
That is why, when you want to disperse them you use an atomiser. Like the sort of thing you find on a woman's perfume bottle.
Think of paint. Open a tin and you can smell it. Do you use a brush to paint a car? No. You use a spray gun to atomise it. When you do that you wear a full face mask. You don't do that when you paint your walls.
Comprende?