Аннотация: The practical significance is the need to stabilize the composition of the air for the comfortable existence of biota and natural assistance to humans in the fight against coronavirus infection and the like; maintaining a natural balance in nature. The relevance of the work is to solve the problem associated with the violation of the composition of the air, the natural fight against the COVID-19 infection.
Objective: to determine the violation of the composition of the air after the drainage of swamps and its impact on public health. The problem of changing the composition of the air (qualitative component - oxygen) due to the drainage of swamps in the country is raised. A set of measures to protect wetlands has been implemented. But all the measures taken are long-term. A large number of years have passed, and according to the results of the study of carbon dioxide in the atmosphere, there is a lot and a very small amount of oxygen. This has led to high mortality, low life expectancy and severe course of coronavirus infection. The interconnection of the entire geographic envelope is disrupted. To quickly solve the identified problem, it is proposed to attract the attention of ecologists from neighboring countries, cooperate and invent a new device for instant measurement of the amount of oxygen.