Inclusion Criteria:  40 years of age or older Waste function test results show FEV1/FVC<0.7, FEV1 <80% of forecast  Exclusion Criteria:  Patients under 18 years of age with changes in medication (such as inhalants). Older people over 80 years of age. People with no respiratory symptoms with mMRC 0. Who doesn't understand a simple explanation for fine dust exposure devices. Someone who disagrees with the study.