How loud is the AirScape in terms of sones?
In a real world setting, with the AirScape 1.7 on low speed, some effort is required just to hear it. Sound level is rated at two _sones_ — just above a modern refrigerator (three and a half _sones_ on high). So the unit is QUIET. That said, sound can be very subjective, and highly affected by various environmental factors. Also, you should be aware that, when it comes to whole house fans, comparing manufacturer’s claims can be misleading since there is no standardized testing procedure. Low noise level is a top priority for most AirScape customers; and most are very happy with the real-world results. We suggest you read some of the testimonials from AirScape users.
