MYTH OF THE MONTH: Metal oxide sensors are a good indication of TVOCs.
BUSTED: Metal Oxide sensors are a very high level and broad range of only a small portion of TVOCs. Aircuity implements both MOS and PID sensors for all lab DCV projects and for most WELL/RESET projects as it provides a far more accurate representation of TVOCs. Metal Oxide sensors typically have more drift and inaccuracies than calibrated PIDs and will miss a large percentage of TVOCs when utilized in a lab DCV application. This is a critical point for lab DCV applications.