Objective: To characterize the cardiorespiratory function and the state of oxidative stress resulting from the exposure to wood smoke in women who live at high altitude (3,850 m a.s.l.). Materials and methods: An observational case-series study. The cardiorespiratory function was analyzed, and thebiomarkers of oxidative stress malondialdehyde (MDA) and carboxyhemoglobin (COHb) were quantified. Measures of central tendency and dispersion were determined. The statistical methods of association and correlation were implemented. Results: Sixty (60) patients were included in the research. Fifty percent (50.00 %) of the participants showed clinical evidence of heart disease and 25.00 % had clinical symptoms of respiratory disease. Forty-five percent (45.00 %) of the spirometries revealed normal values. Thirty-six point six seven percent (36.67 %) showed a decrease in the forced expiratoryvolum...