Oxygen (O2) Gas Detectors
Accurate oxygen (O2) measurements are essential to prevent injuries or deaths in situations with potentially high or low levels of oxygen. Oxygen gas detectors will typically trigger an alarm when the oxygen level drops below 19.5 percent volume. The most common use of oxygen gas detection is in confined spaces—totally or partially closed areas not designed to be permanently occupied. It is essential to draw an O2 gas sample before entering these spaces and continuously monitor O2 levels after entry.
More about Oxygen
Effects of Various O2 Levels
Concentration of O2
Resulting Conditions on Humans
23.5% Volume
Maximum "Safe Level"; OSHA.
21%
Oxygen Concentration of air (20.954).
19.5%
Minimum "Safe Level," OSHA, NIOSH.
17%
Impairment of judgment starts to become evident.
16%
First signs of anoxia appear.
12-16%
Breathing and pulse rate increase, muscular coordination is slightly impaired.
10-14%
Emotional upsets, abnormal fatigue upon exertion, disturbed respiration.
6-10%
Nausea and vomiting, inability to move freely and loss of consciousness may occur.
<6%
Convulsive movements and gasping respiration, respiration stops and a few minutes later heart action ceases.
Area Monitor
Radius BZ1
Multi-Gas Monitor
Ventis Pro5
Multi-Gas Monitor
Ventis MX4
Multi-Gas Monitor
MX6 iBrid
Single-Gas Monitor
GasBadge Pro
