A tall and relatively disused stairwell might be a good option.
Newer smoke detectors use wireless signals to alert building managers when and where people are smoking. Keep an eye out for smoke detectors when deciding where to smoke indoors.
The best air purifiers will have an activated carbon filter. This filter is specially attuned to remove the odor of smoke. If you’re out and about but trying to not get caught smoking indoors, use a personal air filter. These portable devices filter your smoke, scrubbing its scent and toxins. [7] X Research source
Don’t forget to wipe down your mirrors and windows.
You can also store cigarette butts in an old pill bottle. Because they are airtight, this will not smell. Once the bottle is full, you can fill it with vinegar to neutralize any of the remaining smell and throw it away like normal.
If you don’t have all the ingredients necessary to make the pleasantly-scented mix, you could simply boil a cup of vinegar to conceal the cigarette smoke. [15] X Research source