diff --git a/charts.html b/charts.html
index 314ed48..7ba9aa3 100644
--- a/charts.html
+++ b/charts.html
@@ -65,8 +65,8 @@
                         id: 'y-axis-1',
                         ticks: {
                             fontColor: co2Color,
-                            min: 300,
-                            max: 1200,
+                            min: 400,
+                            max: 1100,
                         },
                     }, {
                         type: 'linear',
@@ -75,8 +75,8 @@
                         id: 'y-axis-2',
                         ticks: {
                             fontColor: tempColor,
-                            min: 5,
-                            max: 40,
+                            min: 10,
+                            max: 35,
                         },
                         gridLines: {
                             drawOnChartArea: false,
@@ -88,8 +88,8 @@
                         id: 'y-axis-3',
                         ticks: {
                             fontColor: humidityColor,
-                            min: 0,
-                            max: 100,
+                            min: 15,
+                            max: 85,
                         },
                         gridLines: {
                             drawOnChartArea: false,