diff --git a/sonoff/i18n.h b/sonoff/i18n.h
index b026d0af5..95b17fea6 100644
--- a/sonoff/i18n.h
+++ b/sonoff/i18n.h
@@ -48,6 +48,7 @@
 #define D_JSON_DATA "Data"
 #define D_JSON_DNSSERVER "DNSServer"
 #define D_JSON_DONE "Done"
+#define D_JSON_ECO2 "eCO2"
 #define D_JSON_EMPTY "Empty"
 #define D_JSON_ENDDST "EndDST"           // End Daylight Savings Time
 #define D_JSON_ERASE "Erase"
@@ -481,7 +482,7 @@ const char HTTP_SNS_PRESSURE[] PROGMEM = "%s{s}%s " D_PRESSURE "{m}%s " D_UNIT_P
 const char HTTP_SNS_SEAPRESSURE[] PROGMEM = "%s{s}%s " D_PRESSUREATSEALEVEL "{m}%s " D_UNIT_PRESSURE "{e}";  // {s} = <tr><th>, {m} = </th><td>, {e} = </td></tr>
 const char HTTP_SNS_ANALOG[] PROGMEM = "%s{s}%s " D_ANALOG_INPUT "%d{m}%d{e}";                               // {s} = <tr><th>, {m} = </th><td>, {e} = </td></tr>
 
-#if defined(USE_MHZ19) || defined(USE_SENSEAIR) || defined(USE_SGP30)
+#if defined(USE_MHZ19) || defined(USE_SENSEAIR)
 const char HTTP_SNS_CO2[] PROGMEM = "%s{s}%s " D_CO2 "{m}%d " D_UNIT_PARTS_PER_MILLION "{e}";                // {s} = <tr><th>, {m} = </th><td>, {e} = </td></tr>
 #endif  // USE_WEBSERVER
 
diff --git a/sonoff/language/cs-CZ.h b/sonoff/language/cs-CZ.h
index 9f2740ecb..21336443c 100644
--- a/sonoff/language/cs-CZ.h
+++ b/sonoff/language/cs-CZ.h
@@ -77,6 +77,7 @@
 #define D_DNS_SERVER "Server DNS"
 #define D_DONE "Provedeno"
 #define D_DST_TIME "DST"
+#define D_ECO2 "eCO2"
 #define D_EMULATION "Emulace"
 #define D_ENABLED "Otevřený"
 #define D_ERASE "Smaž"
diff --git a/sonoff/language/de-DE.h b/sonoff/language/de-DE.h
index 45040412e..caa74fd41 100644
--- a/sonoff/language/de-DE.h
+++ b/sonoff/language/de-DE.h
@@ -77,6 +77,7 @@
 #define D_DNS_SERVER "DNS Server"
 #define D_DONE "erledigt"
 #define D_DST_TIME "DST"
+#define D_ECO2 "eCO2"
 #define D_EMULATION "Emulation"
 #define D_ENABLED "aktiviert"
 #define D_ERASE "löschen"
diff --git a/sonoff/language/en-GB.h b/sonoff/language/en-GB.h
index 7addad82d..6704cc2b7 100644
--- a/sonoff/language/en-GB.h
+++ b/sonoff/language/en-GB.h
@@ -77,6 +77,7 @@
 #define D_DNS_SERVER "DNS Server"
 #define D_DONE "Done"
 #define D_DST_TIME "DST"
+#define D_ECO2 "eCO2"
 #define D_EMULATION "Emulation"
 #define D_ENABLED "Enabled"
 #define D_ERASE "Erase"
diff --git a/sonoff/language/es-AR.h b/sonoff/language/es-AR.h
index 1553fe9b5..0f3a24de2 100644
--- a/sonoff/language/es-AR.h
+++ b/sonoff/language/es-AR.h
@@ -77,6 +77,7 @@
 #define D_DNS_SERVER "DNS Server"
 #define D_DONE "Listo"
 #define D_DST_TIME "DST"
+#define D_ECO2 "eCO2"
 #define D_EMULATION "Emulación"
 #define D_ENABLED "Habilitado"
 #define D_ERASE "Borrar"
diff --git a/sonoff/language/fr-FR.h b/sonoff/language/fr-FR.h
index d5a62db80..5d09cfcb6 100644
--- a/sonoff/language/fr-FR.h
+++ b/sonoff/language/fr-FR.h
@@ -77,6 +77,7 @@
 #define D_DNS_SERVER "Serveur DNS"
 #define D_DONE "Fait"
 #define D_DST_TIME "DST"
+#define D_ECO2 "eCO2"
 #define D_EMULATION "Emulation"
 #define D_ENABLED "Activé"
 #define D_ERASE "Effacer"
diff --git a/sonoff/language/hu-HU.h b/sonoff/language/hu-HU.h
index f4dc7a0c9..e043b1b96 100644
--- a/sonoff/language/hu-HU.h
+++ b/sonoff/language/hu-HU.h
@@ -77,6 +77,7 @@
 #define D_DNS_SERVER "DNS Szerver"
 #define D_DONE "Kész"
 #define D_DST_TIME "DST"
+#define D_ECO2 "eCO2"
 #define D_EMULATION "Emuláció"
 #define D_ENABLED "Engedélyezve"
 #define D_ERASE "Törlés"
diff --git a/sonoff/language/it-IT.h b/sonoff/language/it-IT.h
index 8a3a80702..59851e677 100644
--- a/sonoff/language/it-IT.h
+++ b/sonoff/language/it-IT.h
@@ -77,6 +77,7 @@
 #define D_DNS_SERVER "DNS Server"
 #define D_DONE "Fatto"
 #define D_DST_TIME "DST"
+#define D_ECO2 "eCO2"
 #define D_EMULATION "Emulazione"
 #define D_ENABLED "Abilitato"
 #define D_ERASE "Cancellare"
diff --git a/sonoff/language/nl-NL.h b/sonoff/language/nl-NL.h
index 507213f07..b21bea2aa 100644
--- a/sonoff/language/nl-NL.h
+++ b/sonoff/language/nl-NL.h
@@ -77,6 +77,7 @@
 #define D_DNS_SERVER "DNS Server"
 #define D_DONE "Klaar"
 #define D_DST_TIME "ZT"
+#define D_ECO2 "eCO2"
 #define D_EMULATION "Emulatie"
 #define D_ENABLED "Geactiveerd"
 #define D_ERASE "Wissen"
diff --git a/sonoff/language/pl-PL.h b/sonoff/language/pl-PL.h
index 856e682bf..9d0352315 100644
--- a/sonoff/language/pl-PL.h
+++ b/sonoff/language/pl-PL.h
@@ -77,6 +77,7 @@
 #define D_DNS_SERVER "Server DNS"
 #define D_DONE "Wykonane"
 #define D_DST_TIME "DST"
+#define D_ECO2 "eCO2"
 #define D_EMULATION "Emulacja"
 #define D_ENABLED "Otwarty"
 #define D_ERASE "Nadpisz"
diff --git a/sonoff/language/pt-PT.h b/sonoff/language/pt-PT.h
index 482e40474..5c52cd528 100644
--- a/sonoff/language/pt-PT.h
+++ b/sonoff/language/pt-PT.h
@@ -77,6 +77,7 @@
 #define D_DNS_SERVER "Servidor DNS"
 #define D_DONE "Concluído"
 #define D_DST_TIME "DST"
+#define D_ECO2 "eCO2"
 #define D_EMULATION "Emulação"
 #define D_ENABLED "Habilitado"
 #define D_ERASE "Apagar"
diff --git a/sonoff/language/ru-RU.h b/sonoff/language/ru-RU.h
index ee84a50b0..d11bfcda2 100644
--- a/sonoff/language/ru-RU.h
+++ b/sonoff/language/ru-RU.h
@@ -77,6 +77,7 @@
 #define D_DNS_SERVER "DNS Сервер"
 #define D_DONE "Выполнено"
 #define D_DST_TIME "DST"
+#define D_ECO2 "eCO2"
 #define D_EMULATION "Эмуляция"
 #define D_ENABLED "Активно"
 #define D_ERASE "Стирать"
diff --git a/sonoff/language/zh-CN.h b/sonoff/language/zh-CN.h
index a105a9c3a..f9d0d5cc2 100644
--- a/sonoff/language/zh-CN.h
+++ b/sonoff/language/zh-CN.h
@@ -77,6 +77,7 @@
 #define D_DNS_SERVER "DNS服务器"
 #define D_DONE "完成"
 #define D_DST_TIME "DST"
+#define D_ECO2 "eCO2"
 #define D_EMULATION "设备模拟"
 #define D_ENABLED "启用"
 #define D_ERASE "擦除"
diff --git a/sonoff/language/zh-TW.h b/sonoff/language/zh-TW.h
index 118e0d719..a95b772ca 100644
--- a/sonoff/language/zh-TW.h
+++ b/sonoff/language/zh-TW.h
@@ -77,6 +77,7 @@
 #define D_DNS_SERVER "DNS伺服器"
 #define D_DONE "完成"
 #define D_DST_TIME "DST"
+#define D_ECO2 "eCO2"
 #define D_EMULATION "設備模擬"
 #define D_ENABLED "啟用"
 #define D_ERASE "刪除"
diff --git a/sonoff/xsns_21_sgp30.ino b/sonoff/xsns_21_sgp30.ino
index 205c34437..eed03ce7f 100644
--- a/sonoff/xsns_21_sgp30.ino
+++ b/sonoff/xsns_21_sgp30.ino
@@ -64,20 +64,21 @@ void Sgp30Update()  // Perform every second to ensure proper operation of the ba
   }
 }
 
-const char HTTP_SNS_TVOC[] PROGMEM = "%s{s}SGP30 " D_TVOC "{m}%d " D_UNIT_PARTS_PER_BILLION "{e}";
+const char HTTP_SNS_SGP30[] PROGMEM = "%s"
+  "{s}SGP30 " D_ECO2 "{m}%d " D_UNIT_PARTS_PER_MILLION "{e}"                // {s} = <tr><th>, {m} = </th><td>, {e} = </td></tr>
+  "{s}SGP30 " D_TVOC "{m}%d " D_UNIT_PARTS_PER_BILLION "{e}";
 
 void Sgp30Show(boolean json)
 {
   if (sgp30_ready) {
     if (json) {
-      snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("%s,\"SGP30\":{\"" D_JSON_CO2 "\":%d,\"" D_JSON_TVOC "\":%d}"), mqtt_data, sgp.eCO2, sgp.TVOC);
+      snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("%s,\"SGP30\":{\"" D_JSON_ECO2 "\":%d,\"" D_JSON_TVOC "\":%d}"), mqtt_data, sgp.eCO2, sgp.TVOC);
 #ifdef USE_DOMOTICZ
-    DomoticzSensor(DZ_AIRQUALITY, sgp.eCO2);
+      DomoticzSensor(DZ_AIRQUALITY, sgp.eCO2);
 #endif  // USE_DOMOTICZ
     } else {
 #ifdef USE_WEBSERVER
-      snprintf_P(mqtt_data, sizeof(mqtt_data), HTTP_SNS_CO2, mqtt_data, "SGP30", sgp.eCO2);
-      snprintf_P(mqtt_data, sizeof(mqtt_data), HTTP_SNS_TVOC, mqtt_data, sgp.TVOC);
+      snprintf_P(mqtt_data, sizeof(mqtt_data), HTTP_SNS_SGP30, mqtt_data, sgp.eCO2, sgp.TVOC);
 #endif
     }
   }