TBF, and speaking as an partner of an NHS worker, the PPE in the UK is not of an adequate standard and never has been during the pandemic.
An FFP1 mask is barely medical grade, it is the same as the general public wear. In Europe even the general public have to wear a minimum of FFP2, and this is also much more common in the USA.
The UK has only supplied NHS staff with the lowest grade possible, which is a major factor in the thousands of health and social care deaths.
Regardless of which, NHS staff (or their families) should not be excluded or discriminated against.
If Benefit felt strongly, they could have lobbied the government (clearly very easy to sway given the right lobbyist) and pushed for proper medical grade PPE for the NHS. Not too late to fix this either.