Effective hacks to healthy breathing For most people, winter is usually their favourite time of the year. New Delhi : For most people, winter is usually their favourite time of the year. Along with enjoying the chill in the air, one needs to also be careful about the quality of air you're breathing, since the AQI levels rise during this time. Impurities in the air enter the respiratory system by inhalation, causing disastrous effects in people from all age groups. Hygiene and personal wellness has become an important part of everyone's lifestyle in the current situation. Washing hands every time we return home is now an essential.