An air conditioning system for heat exchange between at least a first fluid and a second fluid comprising: a housing comprising at least one inlet for the second fluid , at least outlet for the second fluid , and a second fluid circuit for the second fluid provided between the inlet for the second fluid and the outlet for the second fluid ; at least one heat exchanger for the first fluid comprising a first fluid circuit for the first fluid, wherein the heat exchanger is at least partially encapsulated within the housing ; a blower housing with a blower motor configured to ensure the second fluid circulation through the second fluid circuit , wherein the blower housing is at least partially encapsulated within the housing so that the blower motor is located at the lower level than the heat exchanger , wherein each level is measured with respect to gravitational force (Fg) affecting the air conditioning system , wherein the blower housing comprises an inner face facing the blower motor and an outer face opposite to the inner face , wherein the housing further comprises at least one condensation fluid evacuation circuit for condensation fluid that condenses on the surface of the heat exchanger , wherein the housing comprises at least one filtering compartment located in the vicinity of the inlet , wherein the filtering compartment further comprises at least one filtering means , at least one filter fluid evacuation circuit for at least a fluid that is separated on the surface of the filtering means , characterised in that the housing further comprises at least one first opening configured to evacuate the condensation fluid from the housing , wherein the filtering compartment further comprises at least one second opening configured to evacuate the filter fluid from the housing , wherein the second opening is fluidly connected to the filtering compartment , wherein the housing comprises at least one first collecting wall configured to guide the condensation fluid towards the first opening , wherein the housing comprises at least one second collecting wall configured to guide the filter fluid towards the second opening , wherein the filter fluid evacuation circuit is limited on one side by at least a part of the outer face of the blower housing , and on the other side by the second collecting wall , wherein the filter fluid evacuation circuit is limited on one side by at least a part of the outer face of the blower housing , and on the other side by the second collecting wall , wherein the condensation fluid evacuation circuit is limited on one side by at least a part of the outer face of the blower housing , and on the other side by the first collecting wall , wherein the evacuation circuits are configured to gravitationally guide the fluid towards the openings , wherein the blower housing comprises a separation wall configured to fluidly isolate the condensation fluid evacuation circuit from the filter fluid evacuation circuit , wherein the filtering compartment comprises at least one channel configured to provide a fluid communication between the filtering compartment and the fluid evacuation circuit , wherein the filtering compartment is located downstream with respect to the channel in regards of the air flow. <EOS>