As stated in other ways above, active and passive source noise cancellation has been around for a very long time. There are many past articles in Popular Science/Mechanics on the subject. It has also been successfully installed on concept cars and aircraft to silence interior cabin noises. This technology can silence just about anything.
The trick is to make it cheap enough for consumers to buy and, so far, nobody (as far as I know) has succeeded in doing that. It always seems to be less expensive to make the noise creating device quieter.
However, if you 'do it yourself' it's really quite simple and inexpensive. Continuously record the noise from the device (microphone) , invert that noise 180 degrees (one transistor), amplify it (audio amplifier), and feed it to speaker(s) pointed at the noise source (anywhere between you and the source) at a speaker output level equal to the noise source and, BINGO, you have your silence.
This is exactly how noise canceling head phones and microphones work only with bigger speakers between you and the noise source.
Make one that's inexpensive enough to be marketable and you'll make a fortune!