By measuring sound performance at each fan's highest settings, Quiet Mark Certified fan models provide cooling performance without an intrusive noise experience, even in the most gruelling temperatures.
While many air control products operate within a relatively low decibel range, sound quality becomes increasingly important when products are used for long periods, close to the user for sleeping, working or relaxing. Two appliances can measure the same decibel level, yet create completely different listening experiences depending on tone, pitch and frequency. |
