Buying P100 filters for 3M mask

I want to get some new filters for my 3M 7500 series mask and had a look at the particle filter mask in Australian and theyre quite expensive.

Then I notice that in the US they dont use the P2/P3 system we do but P100 and P95.

I notice that the pink P100 filters can be obtained cheaper then the P3 filters in Aust:
https://www.amazon.com.au/Particulat...ywords=3m+p100

Has anyone bought the US standard masks? I assume theyre just as good?

I have and have used many of the P100 round pink filters, US and Chinese, without issues. Bad or even average stuff is rare from 3M IME.

I just bought these:
https://www.amazon.com.au/3M-Respira...s=3m+p100+mask

I hope theyre genuine!