Urban air polluted by suspended particles, gases and pathogens is the main factor triggering the onset of asthma attacks . Today, compared with the 40s of the last century, the number of patients with asthma has increased by at least 7 times. Doctors attribute such a sharp
Clean air for asthma
Urban air polluted by suspended particles, gases and pathogens is the main factor triggering the onset of asthma attacks . Today, compared with the 40s of the last century, the number of patients with asthma has increased by at least 7 times. Doctors attribute such a sharp