Unfortunately we do not sell this filter anymore: Philips Filter-Kit PowerPro Comp. FC8010/01 (1 -Teilig)
Reference : https://www.philips.ch/fr/c-p/FC8010_01/kit-de-rechange
Both are certainly suitable for flat floors.
According to the description, the blue one should only have 600W. (Which of course is not true)
I have both devices, the only difference is really the colour.