What smoking conditions causes a feeling of suffocation?

Smoking in enclosed or poorly ventilated spaces can lead to a feeling of suffocation due to the buildup of harmful smoke and toxins. Inhalation of smoke can irritate the airways and lungs, causing breathing difficulties and a sensation of tightness in the chest. Additionally, certain conditions like chronic obstructive pulmonary disease (COPD) or Asthma can exacerbate these feelings when exposed to smoke. Overall, the combination of reduced air quality and respiratory irritation contributes to the sensation of suffocation.