Popcorn lung signs include persistent cough and shortness of breath
https://go.chinesewire.com/article/Zeptives-Industry-Leading-Vape-Detectors-Get-Major-Software-Upgrade-for-Easier-Management?storyId=68a5129a2ccae40002d54ce5
Popcorn lung signs include persistent cough and shortness of breath. While rare, the risk reinforces choosing to quit flavored vapes entirely.