OSHA Oxygen Test Behind Mask – Shows O2 Deficient Atmosphere!! YouTube

VIDEO: https://youtu.be/aL78x3bNIRo?t=142

If you like science experiments you will like this video.. An official OSHA approved oxygen test is performed in open air and then behind a mask. See what happens…

URGENT ALERT! Oxygen – Deficient – Atmosphere!! By:Highimpactvlogs. 😁👍 – YouTube