diff --git a/lib/pages/analytics/modules/air_quality/widgets/range_of_aqi_chart.dart b/lib/pages/analytics/modules/air_quality/widgets/range_of_aqi_chart.dart
index a271d154..e0a8107f 100644
--- a/lib/pages/analytics/modules/air_quality/widgets/range_of_aqi_chart.dart
+++ b/lib/pages/analytics/modules/air_quality/widgets/range_of_aqi_chart.dart
@@ -65,46 +65,26 @@ class RangeOfAqiChart extends StatelessWidget {
   }
 
   LineChartBarData _buildMinLine() {
-    return LineChartBarData(
-      spots: List.generate(
-        minValues.length,
-        (i) => FlSpot(i.toDouble(), minValues[i]),
-      ),
-      isCurved: true,
+    return _buildLine(
+      values: minValues,
       color: const Color(0xFF93AAFD),
-      barWidth: 3,
-      isStrokeCapRound: true,
-      dotData: _buildDotData(const Color(0xFF023DFE)),
-      belowBarData: BarAreaData(show: false),
+      dotColor: const Color(0xFF023DFE),
     );
   }
 
   LineChartBarData _buildAverageLine() {
-    return LineChartBarData(
-      spots: List.generate(
-        avgValues.length,
-        (i) => FlSpot(i.toDouble(), avgValues[i]),
-      ),
-      isCurved: true,
+    return _buildLine(
+      values: avgValues,
       color: Colors.white,
-      barWidth: 3,
-      dotData: const FlDotData(show: false),
-      belowBarData: BarAreaData(show: false),
+      dotColor: null,
     );
   }
 
   LineChartBarData _buildMaxLine() {
-    return LineChartBarData(
-      spots: List.generate(
-        maxValues.length,
-        (i) => FlSpot(i.toDouble(), maxValues[i]),
-      ),
-      isCurved: true,
+    return _buildLine(
+      values: maxValues,
       color: const Color(0xFF962DFF),
-      barWidth: 3,
-      isStrokeCapRound: true,
-      dotData: _buildDotData(const Color(0xFF5F00BD)),
-      belowBarData: BarAreaData(show: false),
+      dotColor: const Color(0xFF5F00BD),
     );
   }
 
@@ -120,6 +100,26 @@ class RangeOfAqiChart extends StatelessWidget {
     );
   }
 
+  LineChartBarData _buildLine({
+    required List<double> values,
+    required Color color,
+    Color? dotColor,
+  }) {
+    return LineChartBarData(
+      spots: List.generate(
+        values.length,
+        (i) => FlSpot(i.toDouble(), values[i]),
+      ),
+      isCurved: true,
+      color: color,
+      barWidth: 4,
+      isStrokeCapRound: true,
+      dotData:
+          dotColor != null ? _buildDotData(dotColor) : const FlDotData(show: false),
+      belowBarData: BarAreaData(show: false),
+    );
+  }
+
   FlTitlesData _titlesData(BuildContext context) {
     final titlesData = EnergyManagementChartsHelper.titlesData(context);
     return titlesData.copyWith(