They drown out everything from office noise to the subway and have 60 hours of playback — get them for over 40% off.

If a quiet fan is a must, there are pedestal fans with low noise ratings of 38dBA or less. The size of a pedestal fan gives you the clearest sense of where it can fit in your home and the relative ...

If you’re planning on working satellites or doing any sort of RF work where the signal lives down in the dirt, you’re going to need a low-noise amplifier. That’s typically not a problem ...

NASA researchers developed a Quiet Space Fan to reduce the noise inside crewed spacecraft ... manager of NASA's Commercial ...