Single Panel Radiators Btus How Do I Best Seal Up Cracks In Wall Panels And Behind Radiator To Stop Smoke Coming Into My Flat?

How do I best seal up cracks in wall panels and behind radiator to stop smoke coming into my flat? - single panel radiators btus

I have allergies and react badly to cigarette smoke.
In my new apartment, the smoke back, and affects all parts except the bathroom) (for some reason. In the hall is through contracts floorboads All I have to reach the appropriate floor up and share. The front door is closed (such as the community level can be smoked, too), and works well.
In the kitchen, clear gaps in the underside of the cabinets are locked, and the good work.
But the smoke seems to have aligned. In various corners of my room smells strong, and behind my radiator. There are big holes in the wall behind the bars, but I do not know how / isolate what is behind.
Along the walls, which could bring some kind of silicone sealant between the panel and the walls. But what and how?
In the kitchen, I am perplexed. A cabinet with no cracks is obvious that it smells very strong. The next door is no longer (after closing of the gap) at the top.

It comes with security from the bottom as the top law firmsare not affected. It is actually there, as my friends can not smell. The smoke is hot, not cold, musty odor and is usually on most weekends and during school nights and nights. It disturbs me very much, thank you in advance for the answers.