optimized Hair Filter for level access shower drain

My Parents home was renewed and they have got a modern level-access shower.

The Drain area of this Shower is covered by some metal Frame Design cover.
To prevent blockage there is a Hair Filter placed under this cover.

The design of this Hair Filter is not very clever and it has to been cleaned each time after a shower. If it is not cleaned each time and there is a woman with long Hair in Household the filter will block and the drain will not work anymore.

Problem of actual Filter is that the openings are all on the same level and the Hairs will just lay over all openings consistent. In combination of foam, dirt, etc they build a sealant very fast.

I have build a filter with openings wich are rising to the middle and an bigger opening to bypass the smaler Openings as well as for the ventilation. The Hairs will sediment on the lower openings while the openings on higher level will still work.

Last week i have installed this Filter at my parents home and the feedback is actually positive.