diff --git a/jest.config.js b/jest.config.js
index a2d2ede..9569eff 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -5,6 +5,7 @@ module.exports = {
     '<rootDir>/nodes/generalFunctions/src/coolprop-node/test/**/*.test.js',
     '<rootDir>/nodes/generalFunctions/test/**/*.test.js',
     '<rootDir>/nodes/dashboardAPI/test/**/*.test.js',
+    '<rootDir>/nodes/diffuser/test/specificClass.test.js',
     '<rootDir>/nodes/monster/test/**/*.test.js',
     '<rootDir>/nodes/pumpingStation/test/**/*.test.js',
     '<rootDir>/nodes/reactor/test/**/*.test.js',
diff --git a/nodes/diffuser b/nodes/diffuser
index ce48389..0570df2 160000
--- a/nodes/diffuser
+++ b/nodes/diffuser
@@ -1 +1 @@
-Subproject commit ce4838979192ca93f8532241d07cd7cb63bd94fd
+Subproject commit 0570df208c5110dc283da8ae25152d7f255aaf65
diff --git a/package.json b/package.json
index 55764a0..c6c3bc1 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,7 @@
   "node-red": {
     "nodes": {
       "dashboardapi": "nodes/dashboardAPI/dashboardapi.js",
+      "diffuser": "nodes/diffuser/diffuser.js",
       "machineGroupControl": "nodes/machineGroupControl/mgc.js",
       "measurement": "nodes/measurement/measurement.js",
       "monster": "nodes/monster/monster.js",
diff --git a/test/e2e/flows.json b/test/e2e/flows.json
index 93034e4..a99a20a 100644
--- a/test/e2e/flows.json
+++ b/test/e2e/flows.json
@@ -366,5 +366,75 @@
         "x": 920,
         "y": 500,
         "wires": []
+    },
+    {
+        "id": "inject-diffuser-flow",
+        "type": "inject",
+        "z": "e2e-flow-tab",
+        "name": "Diffuser airflow",
+        "props": [
+            { "p": "payload" },
+            { "p": "topic", "vt": "str" }
+        ],
+        "repeat": "",
+        "crontab": "",
+        "once": true,
+        "onceDelay": "9",
+        "topic": "air_flow",
+        "payload": "24",
+        "payloadType": "num",
+        "x": 150,
+        "y": 620,
+        "wires": [["diffuser-e2e"]]
+    },
+    {
+        "id": "diffuser-e2e",
+        "type": "diffuser",
+        "z": "e2e-flow-tab",
+        "name": "E2E-Diffuser",
+        "number": 1,
+        "i_elements": 4,
+        "i_diff_density": 2.4,
+        "i_m_water": 4.5,
+        "alfaf": 0.7,
+        "enableLog": false,
+        "logLevel": "error",
+        "x": 390,
+        "y": 620,
+        "wires": [["debug-diffuser-process"], ["debug-diffuser-dbase"], []]
+    },
+    {
+        "id": "debug-diffuser-process",
+        "type": "debug",
+        "z": "e2e-flow-tab",
+        "name": "Diffuser Process Output",
+        "active": true,
+        "tosidebar": true,
+        "console": true,
+        "tostatus": true,
+        "complete": "true",
+        "targetType": "full",
+        "statusVal": "",
+        "statusType": "auto",
+        "x": 670,
+        "y": 600,
+        "wires": []
+    },
+    {
+        "id": "debug-diffuser-dbase",
+        "type": "debug",
+        "z": "e2e-flow-tab",
+        "name": "Diffuser Database Output",
+        "active": true,
+        "tosidebar": true,
+        "console": true,
+        "tostatus": true,
+        "complete": "true",
+        "targetType": "full",
+        "statusVal": "",
+        "statusType": "auto",
+        "x": 680,
+        "y": 640,
+        "wires": []
     }
 ]
diff --git a/test/e2e/run-e2e.sh b/test/e2e/run-e2e.sh
index 71de2bb..c15d8a5 100755
--- a/test/e2e/run-e2e.sh
+++ b/test/e2e/run-e2e.sh
@@ -20,6 +20,7 @@ LOG_WAIT=20
 # EVOLV node types that must appear in the palette (from package.json node-red.nodes)
 EXPECTED_NODES=(
     "dashboardapi"
+    "diffuser"
     "machineGroupControl"
     "measurement"
     "monster"
@@ -193,6 +194,8 @@ wait_for_log_pattern "Database Output" "EVOLV measurement node produced database
 wait_for_log_pattern "Process Output" "EVOLV measurement node produced process output" true || true
 wait_for_log_pattern "Monster Process Output" "EVOLV monster node produced process output" true || true
 wait_for_log_pattern "Monster Database Output" "EVOLV monster node produced database output" true || true
+wait_for_log_pattern "Diffuser Process Output" "EVOLV diffuser node produced process output" true || true
+wait_for_log_pattern "Diffuser Database Output" "EVOLV diffuser node produced database output" true || true
 wait_for_log_pattern "DashboardAPI Output" "EVOLV dashboardapi node produced create output" true || true
 
 # --- Step 6: Summary ---