You might know or know what kind of academics or something I could ask, but how do I go about photographing and videoing and proving cigarette smoke? Best I can

You might know or know what kind of academics or something I could ask, but how do I go about photographing and videoing and proving cigarette smoke? Best I can figure blue lasers or very strong blue LED lights but "this smoke is cigarette smoke" is givin me trouble got asthma keep getting "smoke free" apartments that put me next to chronic smokers and all the law will do if I ain't got proof is let me break the lease. That's happened several times so far but if I can get proof "this is cigarette smoke it only comes from this apartment" I can get rid of the person instead of being forced to move for the 5th time