HEPA (High-Efficiency Particulate Air) Purifiers were shown to be some of the best air cleansing technology available [34]
Its shown to help the skin make more collagen and glycosaminoglycans (molecules that keep skin plump), reduce inflammation, promote healing, increase skin density/firmness, and reduce fine lines
Chen X, Xia P, Zheng S, Li Y, Fang J, Ma Z, et al
It does this in a context-dependent way, responding to local tissue needs rather than ramping up growth signals everywhere
They must also sign an agreement to use two forms of contraception or abstain from sexual activity during the course of treatment
Accordingly, anti-inflammatory pharmaceuticals may be therapeutic in these conditions (Esser 2015)