This is a great fact check, it's impressive how many sources you drew together to show the flaws in the claim being made in the tweet. You did a good job selecting credible and noteworthy sources, which contrasted with that which is cited in this claim pretty heavily. Great job, the only thing I would consider further is whether this is exaggerated, or just plain false. The masks ruining your lungs seem pretty central to the claim, and that seems beyond a doubt false.