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From what I can see this is a patent application for the dehumidification part only, which can be added to a pre-existing HVAC system.

The website claims the system can eliminate the compressor and refrigerant completely.

Not sure if they have a separate patent for that.

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As far as I can tell, the article does not claim (or no longer claims) that this device can eliminate the compressor and refrigerant from an A/C system. It does claim that it can eliminate condensation on the evaporator, which is plausible, and it does eliminate the compressor and refrigerant used in conventional heat-pump dehumidifiers.

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