Ann: Quarterly Operations Review, page-20

@dolphinwrestler ..."why have none of the quarantine hotels bought them? "

Firstly, are you sure they haven't??

Secondly, maybe for the same reason I wouldn't use them, free radicals in the room.

Why don't these other companies use simple 'off the shelf' 'filters' to remove free radicals from the air the way Purifloh plan to??
Perhaps it is not that simple ??

Notice how once again there is no information whatsoever about how they will 'neutralize' the air, but there is acknowledgement that they need to.

The reality is that free radical generators exist, but because of things like the EPA and health authority warnings people don't want to use them. You can buy them like the one I linked to, but most people don't.