Does Vaping Stain Walls? Can Vaping Stain Your Walls? Explained Vape Direct Can Vaping Stain Walls? IQOS Philippines New research from Harvard scientists, including Dr. Michael Blaha and Dr. Christina K. Hastie, warns that vaping can cause irreversible lung damage, leading to scarring and narrowing of the airways that may Vaping releases toxic chemicals, including heavy metals, as well as ultrafine particles that go deep into the lungs. These increase the risk of heart and lung disorders.