diff --git a/app/models/manageiq/providers/lenovo/physical_infra_manager/event_catcher/stream.rb b/app/models/manageiq/providers/lenovo/physical_infra_manager/event_catcher/stream.rb
index 9694967e3e..1e803a3c17 100755
--- a/app/models/manageiq/providers/lenovo/physical_infra_manager/event_catcher/stream.rb
+++ b/app/models/manageiq/providers/lenovo/physical_infra_manager/event_catcher/stream.rb
@@ -1,4 +1,5 @@
 class ManageIQ::Providers::Lenovo::PhysicalInfraManager::EventCatcher::Stream
+  require 'json'
   # Creates an event monitor
   #
   def initialize(ems)
@@ -29,10 +30,18 @@ def event_monitor_handle
 
   private
 
+  def filter_fields
+    [
+      { :operation => 'GT', :field => 'cn', :value => get_last_cnn_from_events(@ems.id).to_s },
+      { :operation => 'NOT', :field => 'eventClass', :value => '200' },
+      { :operation => 'NOT', :field => 'eventClass', :value => '800' }
+    ]
+  end
+
   def events
-    expression = '{"filterType":"FIELDNOTREGEXAND","fields":["operation":"GT","field":"cn","value":"' + get_last_cnn_from_events(@ems.id).to_s + '"]}'
+    expression = { :filterType => 'FIELDNOTREGEXAND', :fields => filter_fields }
 
-    opts = {'filterWith' => expression}
+    opts = {'filterWith' => expression.to_json}
 
     @event_monitor_handle.fetch_events opts
   end