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 (410, 420) are configured to gravitationally guide the fluid towards the openings (101, 102), 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.