Anyone using wax guards should have a look at the new Widex Nanocare wax guards.
They fit any aid with a 2mm receiver hole and they are really well designed with their nano coating which repels moisture and ear wax. (i.e. They don’t stick to the coating.)
My Siemens Nitros came with a very simple Siemens wax guard which have quite large gaps; which allow ear wax to enter the receiver hole. I tried the Widex Cerustop Guards and they too have reasonbaly large gaps.
The Widex NanoCare system has a a fine nano coated mesh with 12 tiny holes in it. (Imagine a 1.5 mm diameter mesh with 12 holes!)
Best I have seen, but still probably not as effective as the Siemens C-Guard system which has a sealed cover which prevents moisture and wax from entering the receiver hole. Nanocare is certainly the next best!!
Will work on some pics showing the three wax guard systems, but because they are so small, clear images are difficult!
Watch this space!!