you can try atmosphere , a lot sinus ppl said they immediately feel the different

Perhaps you can do some research based on these criteria.

How many layer ?
How small of particle can be filtered by HEPA filter ?
does it have report prove the Ap can filtered the virus/bacterias ?
Does it have 3rd party certified ?
How many usage of electricity would it use ?
And can cover how many sq feet & how long can be filtered the air ?

Hopes these can help you. But I will recommend ATMOSPHERE brand.

is about 370+ per mth ( by 12mth installment)
but it does fulfill all the requirement.

Atmosphere

but is not effective. best way is change the filter

Just don't see it = = or buy new one if really can't stand for it

Once u use wet cloth wipe it, the filter totally loss.

I watched one video compare this atmosphere to other brand,
They both open quite long hour, the other brand is broke down in the middle of the challenge, the atmosphere still function well. My hs also using it

Now blueair is develop to which model now ?

If.you not sure what you want ,you can follow these checklists

1. What size or microns they can filter ? Eg. Hand foot disease is 0.027

2. Do they provide you report what virus containment they can filter ? And third party support

3. Check the CADR . It support how much they can cover to ur room

4. And how big and thick of the hepa filter. Some are very big but very thin and gap is wide..

You can also ask them to do the demonstration to you.

The info I have, blueair can filter the microns is 0.1, and cannot filter virus containment. Not suitable in baby room.

You look for Amway air purifier, Atmosphere. Filter microns 0.009, can filter virus containment with report attached.And filter rate is.quite strong. And is certified by Allergy Uk. For those who have allergy with something.