Concerns about noise are important, but what do real users think?

According to feedback from teachers who have used Corsi‑Rosenthal Boxes for at least six months, most consider them quiet.

Several factors can collectively influence the perceived noise level of an air purifier in a classroom, including fan speed settings, room size and layout, the location of the purifier, background noise, and individual sensitivity.
Listen for yourself from the perspective of a student in the classroom
ExampleTeacher Talking
Teacher Talking
ExampleStudents Talking
Students Talking
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