A lot of people were not very serious about lungs health until they began to suffer respiratory problems due to Corona Virus. Corona Virus attacks lungs, thus, limiting human’s ability to take oxygen, which ultimately reduces oxygen saturation levels. Most of the Corona Virus deaths were related to pneumonia, which is also the condition of lungs. 
Here are some few tips to make your lungs healthy:
Black cardamom: Black cardamom is helpful for people suffering from respiratory problems. The spice warms up the respiratory tract and eases air circulation.
Turmeric: Turmeric is natural antibiotic. It eases inflammation, self-heals the body and fights cold and cough. 
Ginger: One of the common reasons for lungs problems is related to cold and cough, ginger is good to ease symptoms of cold and cough. 
Last but not the least, avoid smoking.