diff --git a/src/libslic3r/PrintConfig.cpp b/src/libslic3r/PrintConfig.cpp
index 671135fe2..a53da6e36 100644
--- a/src/libslic3r/PrintConfig.cpp
+++ b/src/libslic3r/PrintConfig.cpp
@@ -973,7 +973,7 @@ void PrintConfigDef::init_fff_params()
 
     def = this->add("activate_air_filtration",coBools);
     def->label = L("Activate air filtration");
-    def->tooltip = L("Acivate for better air filtration");
+    def->tooltip = L("Activate for better air filtration");
     def->mode = comSimple;
     def->set_default_value(new ConfigOptionBools{false});
 
@@ -3231,7 +3231,7 @@ void PrintConfigDef::init_fff_params()
     def->sidetext = L("°C");
     def->full_label = L("Chamber temperature");
     def->min = 0;
-    def->max = 70;
+    def->max = 60;
     def->set_default_value(new ConfigOptionInts{0});
 
     def = this->add("nozzle_temperature", coInts);
diff --git a/src/slic3r/GUI/Tab.cpp b/src/slic3r/GUI/Tab.cpp
index d08689ae6..2ace223c4 100644
--- a/src/slic3r/GUI/Tab.cpp
+++ b/src/slic3r/GUI/Tab.cpp
@@ -2751,7 +2751,7 @@ void TabFilament::build()
         optgroup = page->new_optgroup(L("Auxiliary part cooling fan"), L"param_cooling_fan");
         optgroup->append_single_option_line("additional_cooling_fan_speed");
 
-        optgroup = page->new_optgroup(L("Exhaust fan"));
+        optgroup = page->new_optgroup(L("Exhaust fan"),L"param_cooling_fan");
 
         optgroup->append_single_option_line("activate_air_filtration");