Are there really super quiet FFU air purifiers?
Release Date:2020-05-07 09:05
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FFU air purifiers are mostly placed indoors. Due to the limited indoor space, noise becomes a prominent issue, especially since they are placed in living rooms and bedrooms, not in large spaces like laboratories or factories.
As an industry professional in the purification industry for many years, I understand that the actual noise level of an FFU should be around 55 decibels. However, since many home users are extremely concerned about noise, businesses have started to address this issue. Therefore, the term "ultra-quiet" frequently appears in store advertisements, even claiming to reach 28~38dB. How do manufacturers achieve this?
It turns out that these low-noise purifiers use motors with a power of only 80W. In other words, using a low-power motor means sacrificing purification capacity for ultra-quiet operation.
Of course, we cannot say that manufacturers are manipulating data or committing fraud, because even 800m3 is considered a very powerful capacity compared to other household air purifiers; this value may be sufficient for most homes (excluding duplexes). The perceptible difference is that a regular FFU only needs 20 minutes to reduce indoor PM2.5, while these "ultra-quiet" products may take 40 minutes or longer.
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