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The most persistent memory on any space is often its odour, therefore the presence of a pleasant odours results in higher self-efficacy, setting higher goals and employing efficient work strategies in comparison to working in a no-scent condition. Moreover, unpleasant odours might increase stress level and result in a loss of productivity.
Reference: Kapustová, Z., Horská, E., Bercik, J., Paluchová, J., & Gurčík, Ľ. (2018). The importance of odours in the workplace: A review. Studia Mundi–Economica, 5(4), 97-104.