There is an odour removed product called Neutrogena, comes as a gel in a pot from which you remove the lid - it lasts quite a while and really does remove smells rather than cover them with another one. A pot of mint is good, it seems to neutralise smells, and is as tough as old boots, assuming you have some degree of light in there. I would have two or three pots and rotate them as one gets a bit leggy and needs some fresh air, bringing another one in to take over. A single pot bought can be split to grow two or three plants and this does work - have used it where people are ill - it makes the place smell nice and fresh. It is possible that sweet leaved geraniums would help too, but they will not be much good in the winter - the one called 'Lady Plymouth' comes to mind, good when gently brushed past but not overwhelming.
One tip though, ensure that one person only has the care of the plants or they will be watered to death, or so ignored that they die off, but the first is far more common in a communal area.