Is this poor laboratory safety?
This is more a comment than an answer, but too long for the former....
There are two things for you (and your company) to consider:

The SDS of the chemicals being handled - that will give you guidance for how best to handle a chemical. Flavouring chemicals like benzaldehyde, cinnamaldehyde, limonene all have irritation warnings, and need to be handled in well ventilated areas; others like diacetyl and allyl hexanoate are straight up nasty. And I don't mean to be patronising with this list of flavouring chemicals 101. I'm sure your list of chemicals is extensive, but they will all have SDS that will dictate how you should be handling them. Use that to base your arguments for change, not the opinions of an online discussion group.
Relevant building codes for laboratories that will specify the required number of air turnovers per hour. If your workplace is old, there is a good chance that ventilation is not quite what it should be. This is not an easy (cheap) problem to solve, but if the company is aware of any potential problems it will be easier to improve workplace practices of working in fumehoods.