The thing that Sodeca have cracked, that others have not, is the aesthetic aspect.
Often ceiling grid air purifiers have limited symmetry and have both air inlet and air outlet in the visible face. This inevitably means that the appearance does not follow the ceiling grid aesthetic convention where every thing is square. Sodeca solve this problem by having a square inlet grille in the centre of the unit. The outlet is a narrow perimeter slot that is only just visible because the face of the unit hangs under the ceiling grid by less than an inch.
Because of the square central inlet in the face of the unit, the mechanicals above are similarly symmetrical.
A square mesh pre-filter, a square H14 grade HEPA filter, a 4 lamp square UVC clamber and a centrifugal plug fan mounted with 4 fixing points. The fan pulls the air through the filter stages and UVC chamber and changes its direction before expelling it through the perimeter discharge slot.
In terms of mechanical symmetry and aesthetic, it could not be better.
The UPT ceiling grid UVC air purifiers all have a HEPA H14 filter as part of the package. This means that the microorganisms that you are aiming to zap with a dose of UVC will invariably be caught by the HEPA H14 filter in any case, so it is arguable that the UVC is almost surplus to requirements as it is down stream of the the UVC stage. If that is your view then there is the option to have the unit without the UVC stage.
The UPT range comes with a choice of fan motor. An AC motor version with an air flow of 150m3/hr and the other with an EC motor which has a higher air flow 350 m3/hr.
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