Lung Detox Natural Mullein Leaf Support Quit Smoking Lung Detox Nicotine Free Lung Cleanser | Respiratory Immune Support. As alternative to smoking, we use natural mullein leaf to support lung health and detox, helping to clear mucus and gunk from your lungs without any harmful chemicals. Enjoy long-lasting freshness on-the-go with our convenient mouth refresher, packed with the goodness of nature's finest ingredients, ensuring you always have a natural solution to keep your breath feeling clean throughout the day.