The hotel room is too stuffy and I feel lack of oxygen.

The hotel room is too stuffy, and the reason for feeling lack of oxygen may be that the room is too tightly sealed for oxygen to enter.

It can be alleviated by opening windows for ventilation, placing green plants and paying attention to cleanliness. Window ventilation can introduce fresh outdoor air and discharge dirty indoor air. Green plants can release oxygen through photosynthesis and absorb pollutants in the air at the same time, thus purifying indoor air. In addition, keeping the room clean and hygienic can also avoid bacterial growth and improve indoor air quality.