The level of filtration, functions and noise are not comparable with Japanese models, unfortunately too expensive sold in France.
Compared to the price of a tower fan, filtration and more, the cost of use is reasonable (permanent filter). A book, however, the parts of the day because of the noise.
After 2h operating feel of an air more "light" is, I would see the filter capacity has time retaining particles. For areas has high fines contents model has a disposable paper filter remains effective.
A problem, however, not yet resolved, excess lubricant pollutes the air during the first hours of operation.
