What is Noise Level (dB)?
The sound output of the air purifier, measured in decibels (dB), indicating how loud it operates.
Definition
Noise level measures the sound produced by the air purifier's fan during operation, expressed in decibels (dB). Air purifiers typically have a range, with a minimum (e.g., 23 dB) for the lowest fan speed and a maximum (e.g., 55 dB) for the highest. For context, 30 dB is a whisper, 40 dB is a quiet library, and 60 dB is a normal conversation.
Why It Matters
A lower noise level ensures the air purifier can run without disturbing sleep, work, or conversations, making it more suitable for various living spaces.
What to Look For
Lower dB values (especially at lower fan speeds, e.g., <30 dB) are better for bedrooms and quiet environments. Max noise levels below 55 dB are generally considered acceptable.
Compare High-End Air Purifiers Products
See how noise level (db) compares across different products.