Window AC units and air purifiers in the US are about to get more energy-efficient

Window air conditioners and portable air purifiers will need to get more efficient to comply with new federal standards in the US. The new rules are expected to cut consumer electricity bills by $1.5 billion a year, according to the Department of Energy (DOE), which finalized the standards yesterday.

On top of saving consumers’ money, making air conditioners more energy-efficient can help take pressure off power grids during heatwaves and cut down on the greenhouse gas pollution causing climate change. This is also the first time the DOE has issued federal efficiency standards for portable air purifiers, which became a more common household fixture as a result of the covid-19 pandemic and worsening wildfires in the American West.

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