I have smoked for 46 years have copd I have heard you shouldn't use a vape if you have copd but I think it is the only thing I can use to Vaping May Seem Safer Than Cigarette Smoking, but It Still Raises Lung Disease Risk What are the best mouth to lung (MTL) vape devices? ? Heres what you need to know. While vapes may have sweet, candy like flavours and flashy tricks, they still contain nicotine and other harmful chemicals. , Over time,