Super-efficient linear compressor could vastly reduce air con power use

https://newatlas.com/energy/magtor-efficient-compressor-energy-efficient/

"90 percent more pressure than the average air compressor for the same power consumption, and some 29 percent more than the best current devices on the market... two round magnetic plates are joined at the middle by a connecting rod designed to transmit magnetic forces in both directions... The two plates joined by the rod comprise the single moving part... no bearings or lubrication required... expect to save somewhere between US$91 and $240 a year on energy bills"