Downstairs neighbors cooking smells- would spray foam insulation help? Any remedies?

[Rob Tepe]

Hi All

I live on the second floor of my duplex and I have tenants in the first floor.  Their kitchen is directly beneath mine and whenever they cook, their cooking odors travel up and become overwhelming in my unit.  Sometimes even when they aren’t cooking, the smell of their spicy food just lingers. I installed an exhaust fan over their stove and I know that they use it, but it’s overmatched I’m afraid. Their entire apartment is pungent. 

I noticed the smells mainly coming up under my sink and dishwasher. Fortunately no other rooms in the house have the odor. I’m assuming it’s coming through the floor where the plumbing pipes are exposed.  Would spray foam insulation in these areas help with this issue?  Does anyone have experience with this and found an actual remedy?  I’m desperate so ANY intel would be greatly appreciated.  Thank you!!!