The CDC says masks are ...

Not effective! 

As most of us that think logically and can read already determined.

So why would Fauci not do a study and publish it, since they're oh so effective?

The CDC, which the left sees as the ultimate be all and end all authority, has their analysis below.

https://wwwnc.cdc.gov/eid/article/26/5/19-0994_article

Although mechanistic studies support the potential effect of hand hygiene or face masks, evidence from 14 randomized controlled trials of these measures did not support a substantial effect on transmission of laboratory-confirmed influenza.