One of my primary reasons for vaping is for the anti-inflammatory effects of cannabis. My lungs are kept at body temperature, not room temperature. Water keeps me hydrated, and as I vape a lot, I just keep water at my vape station and remember to drink it as part of self care. My lungs are amazing self-cleaning organs that clean themselves by means of cilia, mucus, coughing, exhalation. My lungs aren't slick glass, but more like the lining of my cheek, which I notice does Not get rosin, resin, or oil, wax or any form of cannabis stuck to it as a film or coating. Mucus membranes are amazing, and amazingly simular. My mouth is pretty amazing as a temperature sensor also, and vapor that passes the lips isn't the same temperature as heated. It would burn the lips, tongue, throat, before getting to the lungs. One reason for coughing is too warm a temperature so the heat doesn't burn. Too cold a temperature, too little or too much humidity can cause coughing, not just physical or chemical irritants. Coughing happens for many reasons. Turning down the temperature of my vapes works well if I think heat is causing the cough. You don't get clouds with low temperature vaping, but you cough less, so I try that if I feel coughing is an issue. If my throat is irritated after vaping, I know the solution is drinking more water. Dry throats, while uncomfortable, aren't dangerous, and I'm glad to know there is a simple solution.
I vape a crap ton of cannabis. I garden, and I hate it to go to waste. Also, for my lungs. I had severe asthma. My lungs have shown on tests to now be functioning normally, and my asthma is under control. If I try a T break, my asthma becomes worse. For me personally, there hasn't been a downside to vaping. It's improved my health, and it's an interesting hobby. I spend far less on vapes, supplies and seeds than I did on asthma meds, doctors, hospitals, etc.
I know everyone hasn't had the same experience, and bodies are variable. It makes me sad to hear when people struggle with vaping, as my experience as been mainly positive save for the time I ate too high a dose of an edible. It was delicious, but unfortunate.