I've had air filters/purifiers in the past and got sick of the
constantly reducing airflow and expensive filters.

I was talking to a supplier some years ago who sold filterless purifiers
that apparently obliterated the dust into almost nothing.
But I never saw it through.

They've come back onto my radar because they claim to 'kill' viruses, so
i'm thinking of getting one for the opticians as part of our wide
ranging efforts to make people (at least feel as if they are) safer
while they are in.

Not a massive issue immediately as we are only allowing people in under
exceptional circumstances, but when we reopen with whatever is the new
normal, i'd like to feel and appear to be doing as much as possible.

So, any opinions/recommendations on PECO air purifiers?