Google has filed a patent for a bladeless air conditioner that offers a better seal with your window and lets you see straight through it. The fanless air conditioner is quiet, non-obstructive, uses less energy and doesn’t even necessarily use refrigerant to help cool your home. The new design solves the problems of current air conditioners: They’re noisy, have poor seals that allow hot air to flow back into the home, block much of a window’s view, and prevent the window from being opened any further.