Midea is recalling around 1.7 million of its U and U Plus window air conditioners sold in the US, plus another 45,900 sold in Canada. The air conditioners launched in 2020 with a unique U-shaped design that allowed windows to close with the unit installed, reducing the amount of noise heard while they were running. But the design can sometimes prevent water from draining quickly enough resulting in mold growth that “poses risks of respiratory issues or other infections to some…