This study aims to present reflections on the meaning of olfactory sensations and perceptions, as well as their relevance as a phenomenon present in Nursing practice. It stresses the importance of the smells' chemical language in the hospital environment, emphasizing some deductions about the aesthetics of smells from the Nursing perspective. The authors conclude that a deeper aesthetic/philosophical and technical/scientific comprehension of smell emanations will contribute to human care, especially in Nursing diagnoses and prescriptions, environmental quality regulation and therapeutics.