Bullheaded wife/Covid

Take no offense please, I simply seek truth and knowledge.

What I have is a stack of five N95 NIOSH certified respirators sitting right in front of me. This....
https://s.yimg.com/aah/yhst-4043893...al-mask-3m-n95-cup-earloops-small-blue-18.jpg

From the CDC, scroll down to respirators..
Coronavirus Disease 2019 (COVID-19)

"An N95 FFR is a type of respirator which removes particles from the air that are breathed through it. These respirators filter out at least 95% of very small (0.3 micron) particles. N95 FFRs are capable of filtering out all types of particles, including bacteria and viruses."

"N95 respirators reduce the wearer’s exposure to airborne particles, from small particle aerosols to large droplets. N95 respirators are tight-fitting respirators that filter out at least 95% of particles in the air, including large and small particles."

I would like to go to Lowes and buy some lumber. Tell me why I shouldn't don one.