Is cannabis or other smoke inhalation not just cigarettes linked to COPD or emphysema? 

Yes, the inhalation of any combustible material, including cannabis, is linked to an increased risk of developing COPD and emphysema. While tobacco remains the most studied irritant, any smoke contains a mixture of toxic gases and particulate matter that triggers chronic inflammation and physical damage to the lung tissue. 

What we will discuss in this article 

• The specific impact of cannabis smoke on the large airways 

• How ‘deep inhalation’ techniques increase lung exposure 

• The risk associated with water pipes, cigars, and herbal cigarettes 

• Comparing the chemical profiles of different types of smoke 

• Why any form of combustion is hazardous to respiratory health 

Cannabis and airway damage 

Research indicates that cannabis smokers often experience more significant damage to their large airways compared to tobacco smokers. This is partly due to the way cannabis is typically inhaled: taking deeper breaths and holding the smoke in the lungs for longer periods. This technique increases the deposition of tar and other particulates deep within the respiratory system. 

• Bullous Emphysema: Cannabis use has been specifically linked to the development of large air pockets (bullae) in the lungs, which can lead to a collapsed lung. 

• Chronic Bronchitis: Regular cannabis users frequently report a persistent cough and phlegm production similar to tobacco smokers. 

• Airway Resistance: Long term use causes the bronchial tubes to become inflamed and narrowed, increasing the effort required to breathe. 

Other forms of smoke inhalation 

It is a common misconception that ‘natural’ or herbal smoking products are safer for the lungs. Whether it is a cigar, a pipe, or a herbal cigarette, the process of combustion creates carbon monoxide, tar, and various carcinogens that directly irritate the airway lining. 

• Cigars and Pipes: Often contain higher levels of toxins and are associated with a significant risk of COPD, especially if the smoke is inhaled. 

• Water Pipes (Shisha/Hookah): A single session can involve the inhalation of as much smoke as 100 or more cigarettes, delivering high levels of carbon monoxide and heavy metals. 

• Herbal Cigarettes: Although they lack nicotine, they still produce tar and carbon monoxide, which cause the same inflammatory damage to the air sacs. 

Chemical comparisons of smoke 

While the active ingredients (like nicotine or THC) differ, the ‘byproducts’ of burning plant material are remarkably similar. All smoke introduces oxidative stress, which exhausts the body natural antioxidant defences and leads to tissue destruction. 

Type of Inhalant	Primary Irritant	Main Respiratory Risk
Cannabis	High tar and deep inhalation	Bullous emphysema and bronchitis
Cigars	Concentrated toxins and gases	Airflow obstruction and oral issues
Shisha	Carbon monoxide and heavy metals	Acute and chronic lung inflammation
Herbal Smoke	Particulate matter and tar	Chronic airway irritation

Summary 

Inhaling any form of smoke is a significant risk factor for COPD and emphysema. Whether the source is tobacco, cannabis, or herbal products, the combustion process releases harmful particulates and gases that cause permanent structural changes to the lungs. Protecting your respiratory health requires avoiding the inhalation of any burnt material to prevent the chronic inflammation and air sac destruction that leads to long term disease. 

If you experience severe sudden or worsening symptoms call 999 immediately. 

Authority snapshot 

This article was prepared by our Medical Content Team and reviewed by Dr. Stefan Petrov to ensure clinical accuracy. It details the risks associated with various forms of smoke inhalation in accordance with established respiratory science. Our goal is to provide factual information to help individuals understand the impact of all inhalants on lung health.