diff --git a/admin/i18n/de.json b/admin/i18n/de.json
index f0b008d..23b0c5f 100644
--- a/admin/i18n/de.json
+++ b/admin/i18n/de.json
@@ -8,5 +8,7 @@
     "Exclude patterns (one per line)": "Filter-Patterns (eines pro Zeile)",
     "Glob patterns, * wildcard. Lines starting with # are comments. Empty = filter off.": "Glob-Patterns mit * als Wildcard. Zeilen mit # sind Kommentare. Leer = Filter aus.",
     "Verbose filter logging": "Ausführliches Filter-Logging",
-    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Wenn aktiv: jede ausgeschlossene entity_id wird beim initialen Adapter-Sync einzeln geloggt (benötigt Loglevel info oder debug)."
-}
\ No newline at end of file
+    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Wenn aktiv: jede ausgeschlossene entity_id wird beim initialen Adapter-Sync einzeln geloggt (benötigt Loglevel info oder debug).",
+    "Cleanup excluded entities on adapter start": "Ausgefilterte Entitäten beim Adapter-Start löschen",
+    "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged.": "Wenn aktiv: bei jedem Adapter-Start werden vorhandene Objekte unter entities.*, deren entity_id auf die Filter-Patterns matched, gelöscht. Objekte mit Custom-Adapter-Konfiguration (history/influxdb/sql) bleiben erhalten und werden geloggt."
+}
diff --git a/admin/i18n/en.json b/admin/i18n/en.json
index 307dd24..8724b5b 100644
--- a/admin/i18n/en.json
+++ b/admin/i18n/en.json
@@ -8,5 +8,7 @@
     "Exclude patterns (one per line)": "Exclude patterns (one per line)",
     "Glob patterns, * wildcard. Lines starting with # are comments. Empty = filter off.": "Glob patterns, * wildcard. Lines starting with # are comments. Empty = filter off.",
     "Verbose filter logging": "Verbose filter logging",
-    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug)."
-}
\ No newline at end of file
+    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).",
+    "Cleanup excluded entities on adapter start": "Cleanup excluded entities on adapter start",
+    "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged.": "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged."
+}
diff --git a/admin/i18n/es.json b/admin/i18n/es.json
index 712e053..c02c44e 100644
--- a/admin/i18n/es.json
+++ b/admin/i18n/es.json
@@ -8,5 +8,7 @@
     "Exclude patterns (one per line)": "Patrones de exclusión (uno por línea)",
     "Glob patterns, * wildcard. Lines starting with # are comments. Empty = filter off.": "Patrones glob, * como comodín. Las líneas que empiezan con # son comentarios. Vacío = filtro desactivado.",
     "Verbose filter logging": "Registro detallado del filtro",
-    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Cuando está activado, cada entity_id excluido se registra individualmente durante la sincronización inicial del adaptador (requiere loglevel info o debug)."
-}
\ No newline at end of file
+    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Cuando está activado, cada entity_id excluido se registra individualmente durante la sincronización inicial del adaptador (requiere loglevel info o debug).",
+    "Cleanup excluded entities on adapter start": "Cleanup excluded entities on adapter start",
+    "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged.": "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged."
+}
diff --git a/admin/i18n/fr.json b/admin/i18n/fr.json
index 9a042de..efe89e3 100644
--- a/admin/i18n/fr.json
+++ b/admin/i18n/fr.json
@@ -1,12 +1,14 @@
 {
-    "Home assistant IP": "IP de l'assistant à domicile ",
-    "Home assistant WS Port": "Port WS de l'assistant domestique ",
-    "Password repeat": "Répéter le mot de passe ",
+    "Home assistant IP": "IP de l'assistant à domicile ",
+    "Home assistant WS Port": "Port WS de l'assistant domestique ",
+    "Password repeat": "Répéter le mot de passe ",
     "Password": "Mot de passe",
-    "Passwords missmatch!": "Les mots de passe ne correspondent pas !",
+    "Passwords missmatch!": "Les mots de passe ne correspondent pas !",
     "Secure": "HTTPS ?",
     "Exclude patterns (one per line)": "Modèles d'exclusion (un par ligne)",
     "Glob patterns, * wildcard. Lines starting with # are comments. Empty = filter off.": "Modèles glob, * comme joker. Les lignes commençant par # sont des commentaires. Vide = filtre désactivé.",
     "Verbose filter logging": "Journalisation détaillée du filtre",
-    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Lorsqu'activé, chaque entity_id exclu est journalisé individuellement pendant la synchronisation initiale de l'adaptateur (nécessite loglevel info ou debug)."
-}
\ No newline at end of file
+    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Lorsqu'activé, chaque entity_id exclu est journalisé individuellement pendant la synchronisation initiale de l'adaptateur (nécessite loglevel info ou debug).",
+    "Cleanup excluded entities on adapter start": "Cleanup excluded entities on adapter start",
+    "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged.": "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged."
+}
diff --git a/admin/i18n/it.json b/admin/i18n/it.json
index d8c812b..0bc1bf3 100644
--- a/admin/i18n/it.json
+++ b/admin/i18n/it.json
@@ -8,5 +8,7 @@
     "Exclude patterns (one per line)": "Pattern di esclusione (uno per riga)",
     "Glob patterns, * wildcard. Lines starting with # are comments. Empty = filter off.": "Pattern glob, * come wildcard. Le righe che iniziano con # sono commenti. Vuoto = filtro disattivato.",
     "Verbose filter logging": "Logging dettagliato del filtro",
-    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Se attivato, registra ogni entity_id escluso individualmente durante la sincronizzazione iniziale dell'adattatore (richiede loglevel info o debug)."
-}
\ No newline at end of file
+    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Se attivato, registra ogni entity_id escluso individualmente durante la sincronizzazione iniziale dell'adattatore (richiede loglevel info o debug).",
+    "Cleanup excluded entities on adapter start": "Cleanup excluded entities on adapter start",
+    "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged.": "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged."
+}
diff --git a/admin/i18n/nl.json b/admin/i18n/nl.json
index 8c69b91..2fa44e1 100644
--- a/admin/i18n/nl.json
+++ b/admin/i18n/nl.json
@@ -8,5 +8,7 @@
     "Exclude patterns (one per line)": "Uitsluitpatronen (één per regel)",
     "Glob patterns, * wildcard. Lines starting with # are comments. Empty = filter off.": "Glob-patronen, * als wildcard. Regels die beginnen met # zijn commentaar. Leeg = filter uit.",
     "Verbose filter logging": "Uitgebreide filterlogging",
-    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Indien ingeschakeld, wordt elke uitgesloten entity_id afzonderlijk gelogd tijdens de initiële adapter-synchronisatie (vereist loglevel info of debug)."
-}
\ No newline at end of file
+    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Indien ingeschakeld, wordt elke uitgesloten entity_id afzonderlijk gelogd tijdens de initiële adapter-synchronisatie (vereist loglevel info of debug).",
+    "Cleanup excluded entities on adapter start": "Cleanup excluded entities on adapter start",
+    "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged.": "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged."
+}
diff --git a/admin/i18n/pl.json b/admin/i18n/pl.json
index 5c79d78..dba6e9d 100644
--- a/admin/i18n/pl.json
+++ b/admin/i18n/pl.json
@@ -8,5 +8,7 @@
     "Exclude patterns (one per line)": "Wzorce wykluczeń (jeden na linię)",
     "Glob patterns, * wildcard. Lines starting with # are comments. Empty = filter off.": "Wzorce glob, * jako symbol wieloznaczny. Linie zaczynające się od # to komentarze. Puste = filtr wyłączony.",
     "Verbose filter logging": "Szczegółowe logowanie filtra",
-    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Gdy włączone, każde wykluczone entity_id jest logowane osobno podczas początkowej synchronizacji adaptera (wymaga poziomu logowania info lub debug)."
-}
\ No newline at end of file
+    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Gdy włączone, każde wykluczone entity_id jest logowane osobno podczas początkowej synchronizacji adaptera (wymaga poziomu logowania info lub debug).",
+    "Cleanup excluded entities on adapter start": "Cleanup excluded entities on adapter start",
+    "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged.": "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged."
+}
diff --git a/admin/i18n/pt.json b/admin/i18n/pt.json
index 8c67662..c693c1a 100644
--- a/admin/i18n/pt.json
+++ b/admin/i18n/pt.json
@@ -8,5 +8,7 @@
     "Exclude patterns (one per line)": "Padrões de exclusão (um por linha)",
     "Glob patterns, * wildcard. Lines starting with # are comments. Empty = filter off.": "Padrões glob, * como wildcard. Linhas começando com # são comentários. Vazio = filtro desligado.",
     "Verbose filter logging": "Registro detalhado do filtro",
-    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Quando ativado, cada entity_id excluído é registrado individualmente durante a sincronização inicial do adaptador (requer loglevel info ou debug)."
-}
\ No newline at end of file
+    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Quando ativado, cada entity_id excluído é registrado individualmente durante a sincronização inicial do adaptador (requer loglevel info ou debug).",
+    "Cleanup excluded entities on adapter start": "Cleanup excluded entities on adapter start",
+    "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged.": "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged."
+}
diff --git a/admin/i18n/ru.json b/admin/i18n/ru.json
index 7f3f987..b4a9107 100644
--- a/admin/i18n/ru.json
+++ b/admin/i18n/ru.json
@@ -8,5 +8,7 @@
     "Exclude patterns (one per line)": "Шаблоны исключения (по одному на строку)",
     "Glob patterns, * wildcard. Lines starting with # are comments. Empty = filter off.": "Glob-шаблоны, * — подстановочный знак. Строки, начинающиеся с #, являются комментариями. Пусто = фильтр выключен.",
     "Verbose filter logging": "Подробное логирование фильтра",
-    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Когда включено, каждый исключённый entity_id логируется отдельно во время начальной синхронизации адаптера (требуется loglevel info или debug)."
-}
\ No newline at end of file
+    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Когда включено, каждый исключённый entity_id логируется отдельно во время начальной синхронизации адаптера (требуется loglevel info или debug).",
+    "Cleanup excluded entities on adapter start": "Cleanup excluded entities on adapter start",
+    "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged.": "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged."
+}
diff --git a/admin/i18n/uk.json b/admin/i18n/uk.json
index aa15ae0..ecc21c0 100644
--- a/admin/i18n/uk.json
+++ b/admin/i18n/uk.json
@@ -8,5 +8,7 @@
     "Exclude patterns (one per line)": "Шаблони виключення (по одному в рядку)",
     "Glob patterns, * wildcard. Lines starting with # are comments. Empty = filter off.": "Glob-шаблони, * — підстановочний знак. Рядки, що починаються з #, є коментарями. Порожньо = фільтр вимкнено.",
     "Verbose filter logging": "Детальне логування фільтра",
-    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Коли увімкнено, кожен виключений entity_id логується окремо під час початкової синхронізації адаптера (потрібен loglevel info або debug)."
-}
\ No newline at end of file
+    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "Коли увімкнено, кожен виключений entity_id логується окремо під час початкової синхронізації адаптера (потрібен loglevel info або debug).",
+    "Cleanup excluded entities on adapter start": "Cleanup excluded entities on adapter start",
+    "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged.": "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged."
+}
diff --git a/admin/i18n/zh-cn.json b/admin/i18n/zh-cn.json
index 926adaf..cb0785f 100644
--- a/admin/i18n/zh-cn.json
+++ b/admin/i18n/zh-cn.json
@@ -8,5 +8,7 @@
     "Exclude patterns (one per line)": "排除模式（每行一个）",
     "Glob patterns, * wildcard. Lines starting with # are comments. Empty = filter off.": "Glob 模式，* 通配符。以 # 开头的行是注释。为空 = 过滤器关闭。",
     "Verbose filter logging": "详细过滤器日志",
-    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "启用后，在适配器初始同步期间单独记录每个被排除的 entity_id（需要日志级别 info 或 debug）。"
-}
\ No newline at end of file
+    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "启用后，在适配器初始同步期间单独记录每个被排除的 entity_id（需要日志级别 info 或 debug）。",
+    "Cleanup excluded entities on adapter start": "Cleanup excluded entities on adapter start",
+    "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged.": "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged."
+}
diff --git a/admin/jsonConfig.json b/admin/jsonConfig.json
index c320740..89b49a3 100644
--- a/admin/jsonConfig.json
+++ b/admin/jsonConfig.json
@@ -55,6 +55,12 @@
             "label": "Verbose filter logging",
             "help": "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).",
             "sm": 12
+        },
+        "cleanupExcludedOnStart": {
+            "type": "checkbox",
+            "label": "Cleanup excluded entities on adapter start",
+            "help": "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged.",
+            "sm": 12
         }
     }
 }
diff --git a/io-package.json b/io-package.json
index dd74f9c..938c86c 100644
--- a/io-package.json
+++ b/io-package.json
@@ -254,7 +254,8 @@
     "password": "",
     "secure": false,
     "excludePatterns": "# Glob patterns, one per line. Lines starting with # are comments.\n# Example: filter out all entities prefixed with `iob_` regardless of domain:\n# *.iob_*",
-    "verboseFilterLog": false
+    "verboseFilterLog": false,
+    "cleanupExcludedOnStart": false
   },
   "protectedNative": [
     "password"
diff --git a/src/main.ts b/src/main.ts
index 2826c08..875dbba 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -9,6 +9,7 @@ interface HassAdapterConfig {
     secure: boolean;
     excludePatterns: string;
     verboseFilterLog: boolean;
+    cleanupExcludedOnStart: boolean;
 }
 
 interface HassEntity {
@@ -683,6 +684,105 @@ class HassAdapter extends Adapter {
         this.initialSyncCompleted = true;
     }
 
+    private async cleanupExcludedObjects(): Promise<void> {
+        if (!this.config.cleanupExcludedOnStart) {
+            return;
+        }
+        if (this.excludePatterns.length === 0) {
+            this.log.info('Cleanup skipped: no exclude patterns configured');
+            return;
+        }
+
+        let allObjects: Record<string, ioBroker.Object>;
+        try {
+            allObjects = (await this.getAdapterObjectsAsync()) as Record<string, ioBroker.Object>;
+        } catch (err) {
+            this.log.error(`Cleanup: failed to load adapter objects: ${err}`);
+            return;
+        }
+
+        const prefix = `${this.namespace}.entities.`;
+        const channelsToDelete: { id: string; entityId: string }[] = [];
+
+        for (const id in allObjects) {
+            if (!Object.prototype.hasOwnProperty.call(allObjects, id) || !id.startsWith(prefix)) {
+                continue;
+            }
+            const obj = allObjects[id];
+            if (obj.type !== 'channel') {
+                continue;
+            }
+            const entityId = (obj.native as Record<string, any>)?.entity_id;
+            if (typeof entityId !== 'string') {
+                continue;
+            }
+            if (isExcluded(entityId, this.excludePatterns)) {
+                channelsToDelete.push({ id, entityId });
+            }
+        }
+
+        if (channelsToDelete.length === 0) {
+            this.log.info('Cleanup: no existing objects matched exclude patterns');
+            return;
+        }
+
+        let deletedCount = 0;
+        let keptForCustomCount = 0;
+
+        for (const { id, entityId } of channelsToDelete) {
+            const channelCustom = (allObjects[id].common as { custom?: Record<string, unknown> } | undefined)
+                ?.custom;
+            let hasCustom = !!(channelCustom && Object.keys(channelCustom).length);
+            if (!hasCustom) {
+                const subPrefix = `${id}.`;
+                for (const subId in allObjects) {
+                    if (!subId.startsWith(subPrefix)) {
+                        continue;
+                    }
+                    const subCustom = (
+                        allObjects[subId].common as { custom?: Record<string, unknown> } | undefined
+                    )?.custom;
+                    if (subCustom && Object.keys(subCustom).length) {
+                        hasCustom = true;
+                        break;
+                    }
+                }
+            }
+
+            if (hasCustom) {
+                keptForCustomCount++;
+                this.log.warn(
+                    `Cleanup: keeping "${id}" (entity ${entityId}) — has custom adapter config (history/influxdb/sql); remove it manually if you really want to drop it`,
+                );
+                continue;
+            }
+
+            try {
+                await this.delObjectAsync(id, { recursive: true });
+                delete this.hassObjects[id];
+                const subPrefix = `${id}.`;
+                for (const cachedId of Object.keys(this.hassObjects)) {
+                    if (cachedId.startsWith(subPrefix)) {
+                        delete this.hassObjects[cachedId];
+                    }
+                }
+                deletedCount++;
+                if (this.config.verboseFilterLog) {
+                    this.log.info(`Cleanup: deleted "${id}" (entity ${entityId})`);
+                }
+            } catch (err) {
+                this.log.error(`Cleanup: failed to delete "${id}": ${err}`);
+            }
+        }
+
+        this.log.info(
+            `Cleanup: deleted ${deletedCount} excluded entit${deletedCount === 1 ? 'y' : 'ies'}` +
+                (keptForCustomCount > 0
+                    ? `, kept ${keptForCustomCount} with custom config (see warnings above)`
+                    : ''),
+        );
+    }
+
     private async main(): Promise<void> {
         this.config.host ||= '127.0.0.1';
         this.config.port = parseInt(String(this.config.port), 10) || 8123;
@@ -701,6 +801,8 @@ class HassAdapter extends Adapter {
             );
         }
 
+        await this.cleanupExcludedObjects();
+
         await this.setStateAsync('info.connection', false, true);
 
         this.hass = new HASS(this.config, this.log);