Clinical Research Directory

Inclusion Criteria: * Being enrolled in the preschool/kindergarten class of the school where the study was conducted * Being able to speak and understand Turkish * Having written informed consent from a parent or legal guardian * Being willing to participate in the study Exclusion Criteria: * Having an active disease that could affect nasal hygiene practice during data collection * Having any chronic disease * Having structural anomalies that may cause nasal obstruction * Having a physical or cognitive impairment that prevents communication, watching the educational materials, or completing the measurement tools * Having previously participated in a structured education program on nasal hygiene or nose-blowing skills * Not having written informed consent from a parent or legal guardian * Not being willing to participate in the study