@Greg-And-Leah0 , @Gillian166 , @Louise0 , @Annie1372
Forgetting Amway for the moment, and looking at the whole range of "Air Purifiers" versus "Air Conditioners", and the reasons for having one more than the other (or indeed for having both), it is obvious (to me) that the subject, rather than anything else, is one we should all address, irrespective of which part of the world we live and operate.
Allergies these days affect far more prone than they ever did in the past, and so - imho - the means to remove as many of them as is possible should be at the top of all of all our lists.
The first and probably most important thing to note is that whilst most online descriptions of air "purifiers" speak of differences between them and air "conditioners" - and whilst I cannot state for a fact that all air purifiers act the same way as those I purchased several years ago (mine have been excellent in all they do), at least air purifiers do filter out all pollens, particles, dust, and other "unseens" that those who suffer from Allergies etc, by cleaning the air. If one is fortunate enough to have purchased the right kind of air purifier, it's also highly likely that the cleaned air being discharged back into the room will be quite cold, whilst should the air purifier have a three speed fan (ie. slow/medium/fast) the air going back into the room will be cold/colder/very cold!!! (from my and our Guests' experience!) so could - in theory - be deemed to be Air Conditioners!
If there's any "unfortunate" aspect re the above it's that Airbnb's CS doesn't appear to have heard of air purifiers (I know, as I've been down this road with them!) and Airbnb's range of "Amenities" certainly doesn't allow for purification of the air Guests' breathe, although I would suggest that that's far more important to all the allergy sufferers out there, than having an AC?!
I am hoping that Airbnb will recognise the importance of Air Purifiers, as opposed to Air Conditioners, but that in the fullness of time, they will allow for the former being a much needed "Amenity", preferably as a stand-alone item, or one that can be a combined air Purifier/Conditioner (even though such don't appear to be as efficient as stand-alone, separate products).
PS. I am not connected with any manufacturer of any such products, but what I always do before I purchase anything, is my "homework"; ie I research all plusses and minuses, to make certain that the goods WILL do exactly what the manufacturer says will be done, and also what I NEED it/them to do!