35i

Purifiers under 200 wont do much for odors unfortunately. Or not for very long. You need thicker filters with black carbon pellets -these absorb odors. The normal white filters in most purifiers just capture particles. Does nothing for odors. Under 200 dollar units will fair chance have a thin carbo

Filters always come with new units. A good mid-range unit for odors is an Alen 45i, with their best filter. Although it's 350. (35i smaller one is 290 I think.). So they have good filters for odors/VOCs with carbon pellets that absorb odors. (Their filters are 60 normal, 90 for that one for odors/VO

I have the Alen 25i in my office and would also be great for a small nursery. Only 40 db at its highest setting which is great for babies since you want to keep it under 50 db. I also really like how it sounds. A 35i or flex would also be a great choice. I like the flex because it’s a 45i without al