Here is where the CDC states "DO NOT use facemasks."

http://archive.today/RKdWc https://stacks.cdc.gov/view/cdc/84900

"Disposable medical masks (also known as surgical masks) are loose-fitting devices that were designed to be worn by medical personnel to protect accidental contamination of patient wounds, and to protect the wearer against splashes or sprays of bodily fluids. There is limited evidence for their effectiveness in preventing influenza virus transmission either when worn by the infected person for source control or when worn by uninfected persons to reduce exposure. Our systematic review found no significant effect of face masks on transmission of laboratory-confirmed influenza." https://archive.is/y22jF

"More research on cloth masks is needed to inform their use as an alternative to surgical masks/respirators in the event of shortage or high-demand situations. To our knowledge, only 1 randomized controlled trial has been conducted to examine the efficacy of cloth masks in healthcare settings, and the results do not favor use of cloth masks." http://archive.today/rIZN6

"The general public should be educated about mask use because cloth masks may give users a false sense of protection because of their limited protection against acquiring infection. Correctly putting on and taking off cloth masks improves protection. Taking a mask off is a high-risk process because pathogens may be present on the outer surface of the mask and may result in self-contamination during removal." http://archive.today/lbCgF

CDC Study Finds Overwhelming Majority Of People Getting Coronavirus Wore Masks "In the 14 days before illness onset, 71% of case-patients and 74% of control-participants reported always using cloth face coverings or other mask types when in public." http://archive.today/RDVnV

You should be using this resource.

https://pastebin.com/5xEMa5P7