Air conditioning systems should always employ some kind of filtration system to remove dust, dirt, pollen, and other particles from incoming air before it is heated or cooled. This air conditioning system is extremely important for many reasons: it protects both your air conditioning system and your familys health. All home air air conditioning systems share one similar quality-they must be cleaned or replaced regularly to maintain air conditioning efficiency and indoor air quality. Contact us: Asset Associated Air Conditioning, Unit 2/20 Indy Court, Nerang BC, QLD 4211, Ph: 07 5596 1033, Web: http://www.assetaircon.com.au .