Box fans are loud (50–60 dB), but quiet models exist

Most box fans run between 50 and 60 decibels — loud enough to drown out a conversation, especially on high speed. On low, they usually drop into the high 40s, which is more tolerable but definitely not silent.

The annoying hum comes from cheap motors and thin plastic blades. You can’t fix physics, but you can pick a fan that doesn’t sound like a lawnmower.

The Lasko 20" Premium (model 2520) is a solid pick — it’s quieter than the standard Lasko 3300 because the motor is better balanced and the blades are stiffer