Landlocked123
Contributor
I have not invested in an O2 analyzer yet as I dont dive Nitrox. After reading feedback from others on this site I am strongly leaning towards the "test every tank" camp with respect to both CO and O2. My question is regarding the O2. Given that I dont request Nitrox fills what is the risk of getting a Nitrox fill by accident and ending up with O2 toxicity issues? Is this a realistic situation that could happen? It sounds somewhat far fetched. Is this concern justified? Do most divers test their "air" fills to ensure it's in fact "air"?