## 3 Results  
In order to obtain information on the perception of the shopping atmosphere in the conditions of Slovak retail, we conducted a quantitative survey on a sample of 717 respondents. In the first part, respondents were presented with certain characteristics of food sellers, and  
Figure 3: REIMA AirConcept mobile app for aromatising unit settings. their task was to select the names of the shops to which the property would be suitable. A number of shops could also be selected for one property. The results in Figure 4 show that the \"good shopping environment\" feature was clearly associated with Kaufland with a total of 318 responses. Relatively often, this property was also associated with the Lidl store (294). The figures obtained for the designation of that characteristic within individual retailers indicated some differences in perception, which can be regarded as an important finding for making further decisions in terms of generating benefits for the USP (Unique Selling Proposition). After the initial assignment of characteristics to those sellers with whom they were most associated, regardless of their preferred place of purchase, respondents continued by selecting the retailer where they buy food most often. The results in Figure 5 show that they most often shop in Kaufland (28%), Lidl (25%), COOP Jednota (16%), and Tesco (16%). Respondents who reported \"other\" most often reported Malina, CBA, Nitrazdroj, Koruna, Klas, and Milk-Agro. Figure 4: Perception of sellers’ characteristics. Figure 5: Score of the shopping atmosphere in grocery shops. In a separate question, respondents also assessed the shopping atmosphere of the store through a scale from 0 to 10 (where 10 means very pleasant). From the data, we calculated the NPS (Net Promoter Score) indicator to obtain a clearer picture of the perception of the shopping atmosphere in Slovak grocery shops. The indicator can acquire values from \(-100\%\) to \(100\%\), with negative values indicating the need for improvement. In Figure 5, you can see the NPS score of the shopping atmosphere rating, including the number of respondents who commented on the chain. The results show that Fresh scored the best score (4%), but in this case, only 23 respondents commented on the shopping atmosphere. Among the foreign chains, Billa (0%) and Kaufland (\(-3\%\)) scored the best, which was also rated by the most (199) respondents. The worst was Lidl, which reached a score of \(-18\%\). The above findings indicated that there are significant differences in perception of the shopping atmosphere in Slovak grocery shops. However, it is necessary to remember that it is not important to know the value of this indicator, but to monitor its development. At the same time, we tried to find out if there was a difference in the perception of the atmosphere between shops at the declarative level of evaluation of selected properties. Using the Cochran Mantel-Haenszel test (\(p\)-value = 0.007287), we verified that there was a conclusive difference between the responses at a chain level; therefore, it was necessary to make comparisons in each category for each chain using the Chi-square test at a specified materiality level for each group. Only in the case of Kaufland (\(p\) < 0.001) in favour of one category of response confirmed a significant difference in the responses related to the \"shopping atmosphere\" rating. Even when assessing the specific characteristic of the \"pleasant aroma\" related to the given food seller, it is possible to see again the differences in the rating in Figure 6. In this case, Tesco's customers did not share the claim most (30%). On the contrary, the customers of Fresh (92%) and Billa (81%) were most associated with this claim. Based on these findings, we decided to carry out research on the targeted impact of aromatisation on the perception of the atmosphere of the selected sales department and economic indicators. After consulting with the management of the retail store, we focused on the department of pastry and bakery products.