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Fujitsu's 2006 Halcyon lineup features models in a variety of styles, including wall mount, ceiling suspended, cassette, universal, and new IAQ mix and match multi-zone inverter systems with up to four zones. The new systems provide compact footprints and high efficiency to save space and money, says the company. Many of the new models feature advanced electronic IAQ plasma filters for air purification, while all models use R-410A refrigerant.