diff --git a/caimira/apps/calculator/report_generator.py b/caimira/apps/calculator/report_generator.py
index 76c363f5..b70610bf 100644
--- a/caimira/apps/calculator/report_generator.py
+++ b/caimira/apps/calculator/report_generator.py
@@ -319,6 +319,12 @@ def readable_minutes(minutes: int) -> str:
     return time_str + unit
 
 
+def hour_format(hour: float) -> str:
+    hours = int(hour)
+    minutes = int(hour % 1 * 60)
+
+    return f"{hours}:{minutes}"
+
 def percentage(absolute: float) -> float:
     return absolute * 100
 
@@ -514,6 +520,7 @@ class ReportGenerator:
         env.filters['non_zero_percentage'] = non_zero_percentage
         env.filters['readable_minutes'] = readable_minutes
         env.filters['minutes_to_time'] = minutes_to_time
+        env.filters['hour_format'] = hour_format
         env.filters['float_format'] = "{0:.2f}".format
         env.filters['int_format'] = "{:0.0f}".format
         env.filters['percentage'] = percentage
diff --git a/caimira/apps/calculator/static/js/co2_form.js b/caimira/apps/calculator/static/js/co2_form.js
index e5277f3f..d03186a5 100644
--- a/caimira/apps/calculator/static/js/co2_form.js
+++ b/caimira/apps/calculator/static/js/co2_form.js
@@ -125,6 +125,12 @@ function validate() {
 	return submit;
 }
 
+function display_transition_times_hour_format(start, stop) {
+	var minutes_start = start % 1 * 60;
+	var minutes_stop = stop % 1 * 60;
+	return Math.floor(start) + ':' + minutes_start.toPrecision(2) + ' - ' + Math.floor(stop) + ':' + minutes_stop.toPrecision(2);
+}
+
 function display_fitting_data(json_response) {
 	$("#DIV_CO2_fitting_result").show();
 	$("#CO2_data_plot").attr("src", json_response['CO2_plot']);
@@ -132,11 +138,10 @@ function display_fitting_data(json_response) {
 	delete json_response['CO2_plot']; 
 	$("#CO2_fitting_result").val(JSON.stringify(json_response));
 	$("#exhalation_rate_fit").html('Exhalation rate: ' + String(json_response['exhalation_rate'].toFixed(2)) + ' m³/h');
-	let ventilation_table = "<tr><th>Time</th><th>Ventilation value (ACH)</th></tr>";
+	let ventilation_table = "<tr><th>Time (HH:MM)</th><th>ACH value (h⁻¹)</th></tr>";
 	json_response['ventilation_values'].map((val, index) => {
-		console.log(json_response['transition_times'])
-		let transition_times = `${(json_response['transition_times'][index]).toFixed(2)} - ${(json_response['transition_times'][index + 1]).toFixed(2)}`
-		ventilation_table += `<tr><td>${transition_times}</td><td>${val}</td></tr>`;
+		let transition_times = display_transition_times_hour_format(json_response['transition_times'][index], json_response['transition_times'][index + 1]);
+		ventilation_table += `<tr><td>${transition_times}</td><td>${val.toPrecision(2)}</td></tr>`;
 	});
 	$("#ventilation_rate_fit").html(ventilation_table);
 	$("#generate_fitting_data").html('Fit data');
diff --git a/caimira/apps/calculator/static/js/form.js b/caimira/apps/calculator/static/js/form.js
index f24c21cc..72eff671 100644
--- a/caimira/apps/calculator/static/js/form.js
+++ b/caimira/apps/calculator/static/js/form.js
@@ -500,7 +500,6 @@ function ventilation_from_fitting(condition_from_fitting) {
   $('input[type=radio][id=mechanical_ventilation]').prop("disabled", condition_from_fitting);
   $('input[type=radio][id=natural_ventilation]').prop("disabled", condition_from_fitting);
   $('input[type=radio][id=from_fitting]').prop("disabled", !condition_from_fitting);
-  
   if (condition_from_fitting) {
     $('input[type=radio][id=from_fitting]').prop('checked',true);
     $('#DIVfrom_fitting').after($('#window_opening_regime'));
diff --git a/caimira/apps/templates/base/calculator.report.html.j2 b/caimira/apps/templates/base/calculator.report.html.j2
index cdbd26d0..fed4c361 100644
--- a/caimira/apps/templates/base/calculator.report.html.j2
+++ b/caimira/apps/templates/base/calculator.report.html.j2
@@ -530,11 +530,15 @@
 							{% endif %}
 							<li><p class="data_text">From Fitting:
 							{% if form.ventilation_type == "from_fitting" %}
-							Yes 
+							Yes
 							<table border="1" style="width: 20%; margin-left: 30px; margin-top: 20px">
-								<tr><th>Ventilation value (ACH)</th></tr>
+								<tr><th> Time (HH:MM)</th><th>ACH value (h⁻¹)</th></tr>
 								{% for ventilation in form.CO2_fitting_result['ventilation_values'] %}
-									<tr><th>{{ventilation}}</th></tr>
+									{% set transition_time = form.CO2_fitting_result['transition_times'] %}
+									<tr>
+										<td>{{ transition_time[loop.index - 1] | hour_format }} - {{ transition_time[loop.index] | hour_format }}</td>
+										<td>{{ ventilation | float_format }} </td>
+									</tr>
 								{% endfor %} 
 								</table>
 							{% else %}