Air Conditioner problems of the 2008 Lexus IS250

The contact owns a 2008 Lexus Is250. The contact stated that when the air conditioning unit was engaged, there was an abnormal, offensive animal odor emitting from the ventilation. The vehicle was taken to the dealer twice and the air conditioning unit was cleaned as well as the charcoal box. The odor was still present and the dealer advised that the odor was normal. The vehicle was not further repaired. The contact stated that she was hesitant to drive the vehicle because she was not aware of what she was inhaling and if it was harmful. The failure mileage was 13,900 and the current mileage was 13,945.