I have a Laguna version of that device. I cannot find n English-language version of that site to be sure, but it looks very similar. I rarely use it, as my dust collection works pretty well and I use a dust mask in conjunction with the dust collection.
It is noisy, so when I do use it I set the timer for a couple of hours and leave. I don¡¯t know what it does, but it does collect dust on the filter.
The Laguna model uses an odd size pre-filter, available only from Laguna. I modified the intake end of the filter to take a better filter.
For my shop, I don¡¯t think I¡¯d buy it again.
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John Hinman
Boise ID
K700S and A941
