diff --git a/sonoff/language/bg-BG.h b/sonoff/language/bg-BG.h
index ff7801984..d79eb5210 100644
--- a/sonoff/language/bg-BG.h
+++ b/sonoff/language/bg-BG.h
@@ -28,7 +28,7 @@
  * Use online command StateText to translate ON, OFF, HOLD and TOGGLE.
  * Use online command Prefix to translate cmnd, stat and tele.
  *
- * Updated until v6.2.0.1
+ * Updated until v6.2.1.8
 \*********************************************************************/
 
 //#define LANGUAGE_MODULE_NAME         // Enable to display "Module Generic" (ie Spanish), Disable to display "Generic Module" (ie English)
@@ -82,7 +82,7 @@
 #define D_DNS_SERVER "DNS Сървър"
 #define D_DONE "Изпълнено"
 #define D_DST_TIME "DST"
-#define D_ECO2 "eCO2"
+#define D_ECO2 "eCO₂"
 #define D_EMULATION "Емулация"
 #define D_ENABLED "Активиран"
 #define D_ERASE "Изтриване"
@@ -163,15 +163,15 @@
 #define D_USER "Потребител"
 #define D_UTC_TIME "UTC"
 #define D_UV_INDEX "UV индекс"
-#define D_UV_INDEX_1 "Low"
-#define D_UV_INDEX_2 "Mid"
-#define D_UV_INDEX_3 "High"
-#define D_UV_INDEX_4 "Danger"
-#define D_UV_INDEX_5 "BurnL1/2"
-#define D_UV_INDEX_6 "BurnL3"
-#define D_UV_INDEX_7 "OoR"
-#define D_UV_LEVEL "Ниво на ултравиолетово излъчване"
-#define D_UV_POWER "UV Power"
+#define D_UV_INDEX_1 "Нисък"
+#define D_UV_INDEX_2 "Среден"
+#define D_UV_INDEX_3 "Висок"
+#define D_UV_INDEX_4 "Много висок"
+#define D_UV_INDEX_5 "Изгаряне 1/2 степен"
+#define D_UV_INDEX_6 "Изгаряне 3-та степен"
+#define D_UV_INDEX_7 "Извън обхват"
+#define D_UV_LEVEL "UV ниво"
+#define D_UV_POWER "UV мощност"
 #define D_VERSION "Версия"
 #define D_VOLTAGE "Напрежение"
 #define D_WARMLIGHT "Топла"
@@ -181,8 +181,8 @@
 #define D_WARNING_MINIMAL_VERSION "ПРЕДУПРЕЖДЕНИЕ Тази версия не поддържа постоянни настройки"
 #define D_LEVEL_10 "ниво 1-0"
 #define D_LEVEL_01 "ниво 0-1"
-#define D_SERIAL_LOGGING_DISABLED "Серийния логинг изключен"
-#define D_SYSLOG_LOGGING_REENABLED "Системния логинг активиран"
+#define D_SERIAL_LOGGING_DISABLED "Серийният лог изключен"
+#define D_SYSLOG_LOGGING_REENABLED "Системният лог активиран"
 
 #define D_SET_BAUDRATE_TO "Задаване скорост на предаване (Baudrate)"
 #define D_RECEIVED_TOPIC "Получен топик"
@@ -194,7 +194,7 @@
 #define D_BLOCKED_LOOP "Блокиран цикъл"
 #define D_WPS_FAILED_WITH_STATUS "WPS конфигурацията е НЕУСПЕШНА със статус"
 #define D_ACTIVE_FOR_3_MINUTES "активно в течение на 3 минути"
-#define D_FAILED_TO_START "неуспешно стартиране"
+#define D_FAILED_TO_START "Неуспешно стартиране"
 #define D_PATCH_ISSUE_2186 "Проблем с патч 2186"
 #define D_CONNECTING_TO_AP "Свързване към точка за достъп"
 #define D_IN_MODE "в режим"
@@ -241,7 +241,7 @@
 #define D_CONFIGURE_WIFI "Конфигурация на WiFi"
 #define D_CONFIGURE_MQTT "Конфигурация на MQTT"
 #define D_CONFIGURE_DOMOTICZ "Конфигурация на Domoticz"
-#define D_CONFIGURE_LOGGING "Конфигурация на логинга"
+#define D_CONFIGURE_LOGGING "Конфигурация на лога"
 #define D_CONFIGURE_OTHER "Драги конфигурации"
 #define D_CONFIRM_RESET_CONFIGURATION "Потвърдете изчистването"
 #define D_RESET_CONFIGURATION "Изчистване на конфигурацията"
@@ -275,7 +275,7 @@
 #define D_CLIENT "Клиент"
 #define D_FULL_TOPIC "Пълен топик"
 
-#define D_LOGGING_PARAMETERS "Параметри на логинга"
+#define D_LOGGING_PARAMETERS "Параметри на лога"
 #define D_SERIAL_LOG_LEVEL "Степен на серийния лог"
 #define D_WEB_LOG_LEVEL "Степен на Уеб лога"
 #define D_SYS_LOG_LEVEL "Степен на системния лог"
@@ -379,13 +379,13 @@
   #define D_DOMOTICZ_TEMP "Temp"
   #define D_DOMOTICZ_TEMP_HUM "Temp,Hum"
   #define D_DOMOTICZ_TEMP_HUM_BARO "Temp,Hum,Baro"
-  #define D_DOMOTICZ_POWER_ENERGY "Power,Energy"
-  #define D_DOMOTICZ_ILLUMINANCE "Illuminance"
-  #define D_DOMOTICZ_COUNT "Count/PM1"
-  #define D_DOMOTICZ_VOLTAGE "Voltage/PM2,5"
-  #define D_DOMOTICZ_CURRENT "Current/PM10"
-  #define D_DOMOTICZ_AIRQUALITY "AirQuality"
-#define D_DOMOTICZ_UPDATE_TIMER "Update timer"
+  #define D_DOMOTICZ_POWER_ENERGY "Мощност,Енергия"
+  #define D_DOMOTICZ_ILLUMINANCE "Осветеност"
+  #define D_DOMOTICZ_COUNT "Брояч/PM1"
+  #define D_DOMOTICZ_VOLTAGE "Напрежение/PM2,5"
+  #define D_DOMOTICZ_CURRENT "Ток/PM10"
+  #define D_DOMOTICZ_AIRQUALITY "Качество на въздуха"
+#define D_DOMOTICZ_UPDATE_TIMER "Период на опресняване"
 
 // xdrv_09_timers.ino
 #define D_CONFIGURE_TIMER "Конфигуриране на таймер"
@@ -464,7 +464,7 @@
 #define D_SENSOR_I2C_SCL  "I2C SCL"
 #define D_SENSOR_I2C_SDA  "I2C SDA"
 #define D_SENSOR_WS2812   "WS2812"
-#define D_SENSOR_DFR562   "MP3 Player"
+#define D_SENSOR_DFR562   "MP3 плейър"
 #define D_SENSOR_IRSEND   "IRsend"
 #define D_SENSOR_SWITCH   "Ключ"   // Suffix "1"
 #define D_SENSOR_BUTTON   "Бутон"   // Suffix "1"
@@ -506,7 +506,7 @@
 #define D_UNIT_KILOOHM "kΩ"
 #define D_UNIT_KILOWATTHOUR "kWh"
 #define D_UNIT_LUX "lx"
-#define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m3"
+#define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
 #define D_UNIT_MILLIAMPERE "mA"