diff --git a/monitor/example/monitor.yaml b/monitor/example/monitor.yaml
index 7676fde..59be7e6 100644
--- a/monitor/example/monitor.yaml
+++ b/monitor/example/monitor.yaml
@@ -30,6 +30,15 @@
 #      offset [The offset to add to calculate the expected fan speed.
 #              Default is 0 for fan speed target;
 #              Customized value for pwm target]
+#  condition: [optional condition function to create fan functional monitoring]
+#    name: [The name of an available condition function]
+#    properties: [The properties used in the condition function]
+#        - object: [Object path of property to use]
+#          interface: [Interface of property to use]
+#          property:
+#              name: [Property name]
+#              type: [Property data type]
+#              value: [Property value to check condition against]
 #
 #sensor_trust_groups:
 # - class: [Group class name
@@ -63,6 +72,16 @@
 #    sensors:
 #      - name: fan0
 #        has_target: true
+#    # Only create fan functional properties and monitor on air cooled
+#    condition:
+#      name: propertiesMatch
+#      properties:
+#        - object: /xyz/openbmc_project/inventory/system/chassis
+#          interface: xyz.openbmc_project.Inventory.Decorator.CoolingType
+#          property:
+#            name: WaterCooled
+#            type: bool
+#            value: false
 #sensor_trust_groups:
 # - class: NonzeroSpeed
 #    group:
diff --git a/monitor/gen-fan-monitor-defs.py b/monitor/gen-fan-monitor-defs.py
index 83dcbc0..a5f225b 100755
--- a/monitor/gen-fan-monitor-defs.py
+++ b/monitor/gen-fan-monitor-defs.py
@@ -16,10 +16,32 @@
 """
 
 
-tmpl = '''/* This is a generated file. */
+tmpl = '''\
+<%!
+def indent(str, depth):
+    return ''.join(4*' '*depth+line for line in str.splitlines(True))
+%>\
+<%def name="getCondParams(cond)" buffered="True">
+%if (cond['name'] == 'propertiesMatch'):
+std::vector<PropertyState>{
+    %for i in cond['properties']:
+    PropertyState{
+        {
+            "${i['object']}",
+            "${i['interface']}",
+            "${i['property']['name']}"
+        },
+        static_cast<${i['property']['type']}>(${str(i['property']['value']).lower()})
+    },
+    %endfor
+}
+%endif
+</%def>\
+/* This is a generated file. */
 #include "fan_defs.hpp"
 #include "types.hpp"
 #include "groups.hpp"
+#include "conditions.hpp"
 
 using namespace phosphor::fan::monitor;
 using namespace phosphor::fan::trust;
@@ -50,6 +72,14 @@
                                        ${offset}},
                   %endfor
                   },
+                  %if ('condition' in fan_data) and \
+                  (fan_data['condition'] is not None):
+                  make_condition(condition::${fan_data['condition']['name']}(\
+                      ${indent(getCondParams(cond=fan_data['condition']), 5)}\
+                  ))
+                  %else:
+                  {}
+                  %endif
     },
 %endfor
 };