diff --git a/Adafruit_SGP30.h b/Adafruit_SGP30.h
index 1e309f9..87bb4a0 100644
--- a/Adafruit_SGP30.h
+++ b/Adafruit_SGP30.h
@@ -59,12 +59,12 @@ class Adafruit_SGP30 {
    *  value is set when you call {@link IAQmeasure()} **/
   uint16_t eCO2;
 
-  /** The last measurement of the IAQ-calculated equivalent CO2 in ppm. This
-   *  value is set when you call {@link IAQmeasureRaw()} **/
+  /** The last measurement of the raw H2 signal. This value is set when you call
+   * {@link IAQmeasureRaw()} **/
   uint16_t rawH2;
 
-  /** The last measurement of the IAQ-calculated equivalent CO2 in ppm. This
-   *  value is set when you call {@link IAQmeasureRaw()} **/
+  /** The last measurement of the raw ethanol signal. This value is set when you
+   * call {@link IAQmeasureRaw()} **/
   uint16_t rawEthanol;
 
   /** The 48-bit serial number, this value is set when you call {@link begin()}