diff --git a/bundles/org.openhab.binding.valloxmv/src/main/java/org/openhab/binding/valloxmv/internal/ValloxMVBindingConstants.java b/bundles/org.openhab.binding.valloxmv/src/main/java/org/openhab/binding/valloxmv/internal/ValloxMVBindingConstants.java
index 0425506336f10..05e8e4977f418 100644
--- a/bundles/org.openhab.binding.valloxmv/src/main/java/org/openhab/binding/valloxmv/internal/ValloxMVBindingConstants.java
+++ b/bundles/org.openhab.binding.valloxmv/src/main/java/org/openhab/binding/valloxmv/internal/ValloxMVBindingConstants.java
@@ -97,6 +97,11 @@ public class ValloxMVBindingConstants {
      */
     public static final String CHANNEL_HUMIDITY = "humidity";
 
+    /**
+     * Current CO2 of the air flow exhausting the building.
+     */
+    public static final String CHANNEL_CO2 = "co2";
+
     /**
      * Current cell state (0=heat recovery, 1=cool recovery, 2=bypass, 3=defrosting).
      */
diff --git a/bundles/org.openhab.binding.valloxmv/src/main/java/org/openhab/binding/valloxmv/internal/ValloxMVWebSocket.java b/bundles/org.openhab.binding.valloxmv/src/main/java/org/openhab/binding/valloxmv/internal/ValloxMVWebSocket.java
index 369b70ad455d4..8ea53d7b8ec0c 100644
--- a/bundles/org.openhab.binding.valloxmv/src/main/java/org/openhab/binding/valloxmv/internal/ValloxMVWebSocket.java
+++ b/bundles/org.openhab.binding.valloxmv/src/main/java/org/openhab/binding/valloxmv/internal/ValloxMVWebSocket.java
@@ -428,7 +428,9 @@ public void onBinary(InputStream in) {
                 BigDecimal bdTempOutside = getTemperature(bytes, 134);
                 BigDecimal bdTempIncomingBeforeHeating = getTemperature(bytes, 136);
                 BigDecimal bdTempIncoming = getTemperature(bytes, 138);
-                int iHumidity = getNumberBE(bytes, 166);
+
+                int iHumidity = getNumberBE(bytes, 148);
+                int iCo2 = getNumberBE(bytes, 150);
 
                 int iStateOrig = getNumberBE(bytes, 214);
                 int iBoostTimer = getNumberBE(bytes, 220);
@@ -503,6 +505,7 @@ public void onBinary(InputStream in) {
                 updateChannel(ValloxMVBindingConstants.CHANNEL_TEMPERATURE_INCOMING,
                         new QuantityType<>(bdTempIncoming, SIUnits.CELSIUS));
                 updateChannel(ValloxMVBindingConstants.CHANNEL_HUMIDITY, new QuantityType<>(iHumidity, Units.PERCENT));
+                updateChannel(ValloxMVBindingConstants.CHANNEL_CO2, new DecimalType(iCo2));
                 updateChannel(ValloxMVBindingConstants.CHANNEL_CELLSTATE, new DecimalType(iCellstate));
                 updateChannel(ValloxMVBindingConstants.CHANNEL_UPTIME_YEARS, new DecimalType(iUptimeYears));
                 updateChannel(ValloxMVBindingConstants.CHANNEL_UPTIME_HOURS, new DecimalType(iUptimeHours));
diff --git a/bundles/org.openhab.binding.valloxmv/src/main/resources/OH-INF/i18n/valloxmv_de.properties b/bundles/org.openhab.binding.valloxmv/src/main/resources/OH-INF/i18n/valloxmv_de.properties
index 34dd5eff0fd0d..54327020e246c 100644
--- a/bundles/org.openhab.binding.valloxmv/src/main/resources/OH-INF/i18n/valloxmv_de.properties
+++ b/bundles/org.openhab.binding.valloxmv/src/main/resources/OH-INF/i18n/valloxmv_de.properties
@@ -37,6 +37,8 @@ channel-type.valloxmv.tempincoming.label = Temperatur Zuluft
 channel-type.valloxmv.tempincoming.description = Aktuelle Temperatur der Zuluft
 channel-type.valloxmv.humidity.label = Luftfeuchtigkeit
 channel-type.valloxmv.humidity.description = Aktuelle Luftfeuchtigkeit der Abluft
+channel-type.valloxmv.co2.label = Co2
+channel-type.valloxmv.co2.description = Aktueller Kohlenstoffdioxid Gehalt in der Abluft
 channel-type.valloxmv.cellstate.label = Status W�rmetauscher
 channel-type.valloxmv.cellstate.description = Status W�rmetauscher
 channel-type.valloxmv.cellstate.state.option.0 = W�rmer�ckgewinnung
diff --git a/bundles/org.openhab.binding.valloxmv/src/main/resources/OH-INF/thing/thing-types.xml b/bundles/org.openhab.binding.valloxmv/src/main/resources/OH-INF/thing/thing-types.xml
index 66fccd0d11da1..9a8b6f601ec51 100644
--- a/bundles/org.openhab.binding.valloxmv/src/main/resources/OH-INF/thing/thing-types.xml
+++ b/bundles/org.openhab.binding.valloxmv/src/main/resources/OH-INF/thing/thing-types.xml
@@ -18,6 +18,7 @@
 			<channel id="tempincomingbeforeheating" typeId="tempincomingbeforeheating"/>
 			<channel id="tempincoming" typeId="tempincoming"/>
 			<channel id="humidity" typeId="humidity"/>
+            <channel id="co2" typeId="co2"/>
 			<channel id="cellstate" typeId="cellstate"/>
 			<channel id="uptimeyears" typeId="uptimeyears"/>
 			<channel id="uptimehours" typeId="uptimehours"/>
@@ -151,6 +152,13 @@
 		<state readOnly="true" min="0" max="100" pattern="%d %unit%"/>
 	</channel-type>
 
+    <channel-type id="co2">
+        <item-type>Number:Dimensionless</item-type>
+        <label>CO2</label>
+        <description>CO2 measurement</description>
+        <state readOnly="true" pattern="%d"/>
+    </channel-type>
+
 	<channel-type id="cellstate">
 		<item-type>Number</item-type>
 		<label>Cell State</label>