Bosch CS LD 1.0 refrigerant leak detector filter holder and nozzles

I really like my Bosch CS LD 1.0 refrigerant detector. But the device has (to my opinion) three flaws:

The tiny filter placement.

Originally the filter is pushed in the threaded tube on the back side of the nozzle. The air flow goes from the tip of the nozzle through a smaller tube to the bigger tube containing the filter. The filter itself could be moved towards the sensor or could be tilted/rotated so that the filter would not have any effect anymore. I prefer the filter being pushed against a surface with a hole so filter won't move or rotate or tilt.

The filter didn't come loose so far but since the threaded tube containing the filter has broken (second flaw), I needed a replacement.

The second flaw is the thin threaded tube containing the filter so this could also use some work.

I've created a thicker, stronger tube/filterholder with the filter pressing against a surface.

The new filter holder does not have a nozzle but does have extra (standard M10) thread on the outside which can be used to hold nozzles.

The third flaw is the enormous nozzle containing the sensor.

The inlet of the nozzle can't reach places it should.

So I've created nozzles which can hold silicon tubes of desired lengths so you can extend the thick nozzle with a longer, thinner tube to reach in smaller spaces.

This is my filter holder (sliced from top to bottom to see the inside)

Filter goes in the wider top part. A small ridge prevents the filter from falling out when replacing nozzle.

Air flow goes from top to bottom. Filter is pressed onto the surface with the long 3mm tube

Lower thread is used to put the filter holder into the leak detector head.

Upper thread (M10 1.5) can be used to place a nozzle you like.

One nozzle resembles the original nozzle. I've added 4 holes in the sides of the tip. I'm hoping to prevent/slow down water accidentally being sucked up.

One nozzle can be used to extend the reach of the nozzle for tight spaces. A silicon tube can be inserted.

Printing:

All parts can be printed as in the 3MF-files, standing upright with the wider part on top.

This seems not very logical but because of overhangs and certain surfaces need to be flat (filter for instance) I've created and printed them this way.

I've printed them 0.25mm nozzle, 0.1mm layer height, 100% infill and  5mm brim for better bed adhesion.

My filter holder is printed in PETG. The nozzles are TPU

No supports needed.

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Several temporary models 

First some models which were the same as the original. Then a model containing 3 parts (filter holder, adapter to M10 and nozzles).

Last version contains 2 parts: 1 filter holder and 1 nozzle