

Data sheet
This means that the filter is clogged and that large dust particles in contact with the electric field cause a short circuit. Just like mosquitoes that pass near electric traps, this causes a clicking sound. There is nothing dangerous, but you must go through the "maintenance" phase of your air purifier by cleaning the HPP filter according to the user manual. Also remember to check that the pre-filter and carbon filter are recent.
Some air purifiers come with a cartridge and a cotton pad designed for this purpose.
Indeed, the shutter can be difficult to close. First check that the HPP filter is correctly positioned and does not interfere with the closing. Press very hard with both thumbs at the same time on the indicated locations.
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