its chemistry time....
yes but the term aldehyde refers to a group of chemicals that has a carbon double bonded to an oxygen this same carbon must also be bonded to a Hydrogen. like this
Aldehydes are a spefic group , that R represents anything. Formaldehyde is the chemical that is this
..Note that the R is now another hydrogen. It is this component that will mess you up. Now this chemical has many ways of entry, since this is a very small compound it gets into the body through the skin( no open cuts required), lungs. It would take a laboratory grade vacuum system to remove alll of it from the air, not a fan from walgreens. Due to its VERY HIGH affinity for water, this will attach to water vapor and still stay in the air long after the smell is gone and you will still breathe it in.
The aldehydes that you are referring too are long chain aldehydes, they react differently to the body that these do. Their long chain R groups make them toooooooo big to cause the kinds of effects that these small groups can do.
I looked into BKT, but i know at the end of the day Formaldehyde is a no go ...