Cheap Air Purifiers

Really noticeably works!
I bought this on the recommendation of my Doctor of Oriental Medicine, who owns one herself. She thought the wood smoke particulates in my home were bothering my respiratory system and she was right. This unit makes the air feel and smell fresh and clean and within a couple of days I was breathing better and had less respiratory issues bothering me. Well worth it. And small enough that I can move it from room to room easily (and I am 64). Highly recommended. It also came with a free filter, an additional value, which I thought was fabulous.

Quiet, Effective, Fantastic
This is a great air purifier for a single room. I have severe dust and mold allergies, and can now sleep in my old, dusty, moldy house without waking up because I can't breath. I have been running it 24/7 with no noticeable change to my power-bill.

No more coughing and clearing in the morning
This solved my daughters dust mite allergy problem. She had been waking up
every morning too early with minor but persistent coughing and throat clearing
that would start around 4:00 - 5:00 am, and continue so she was not able to
get back to sleep. Getting up and going would stop it until the next morning
when it woke her up again.

We cleaned her room thoroughly many times, but were about ready to replace the
(3 years new) carpet with hardwood in her room because we could not resolve
the problem. But this machine does the trick. Almost no coughing or clearing
anymore in the mornings before she gets out of bed. She slept until 7:00 today.

Any purifier may have fixed this, but this one did it for us so I'm very happy
with it. It was important for our needs that this one filters out very small particles.
It's also very quiet and the blue light acts like a night-lite for her (I would
tape over that if this were in any other bedroom). And it's simple to use: we
turn it on in the late afternoon (a simple dial switch that clicks into four
settings - off, low, med, high fan) and off in the morning.

Doesn't work as described
This item does not work as it claimed. it is very expensive, too. suggest you Winix brand, I had one of that kind too . The winix has a dust sensor and odor sense which automatically turbo the machine when it senses dust.

Blue Air 210B--great product
Got this for my wife allergies and don't know if it helps yet but this unit is the quietest I've heard and seems very nice. The 201 and the 210 are the same excepting the 210B comes with an extra filter