In this master’s thesis, the effect of smell as a tool of sensory marketing on consumer decision making is examined. The aim of the thesis is to describe the functioning of smell in a consumer decision making context and based on gathered data suggest possible recommendations applicable for selected culinary establishments that would serve to meet the needs of consumers as well as operators of these establishments. The case is demonstrated on an empirical study carried out in the Slovak National Theatre, whereby visitors were exposed to purposefully released smells over the period of two weeks. Consumer behaviour and revenues attributable to three selected items were observed over the studied timeframe. The collected data was subsequently compared to that of a counterfactual period in which no smells were being released. A statistically significant difference was observed in the sales of all three items examined, whereby the revenues stemming from coffee and strudel saw an increase, while the revenue from savoury pastry saw a decline. At the same time, it is necessary to identify potential factors that may have skewed the obtained data. Visitors have in their consumption process felt restricted primarily by a time constraint, which is necessary to take into account for long-term application of smell as a tool of sensory marketing, as well as for future research purposes