Wear Masks So You Can Rebreath Your Toxic Exhale

According to a Dr Mehrabian, we use 7 percent verbal, 38 percent vocal, and 55 percent visual when it comes to communication.

This means that while wearing masks, we are not fully communicating with each other

Here’s a video from someone who did some investigation as to the air quality under a mask.

Oxygen levels are measured in your blood, and you would need an pulse-oximeter in order to measure the amount of oxygen in your blood.