Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: Does this purifier do a good job of getting rid of dust in a medium sized room?  That's the most important feature I'm looking for.
Document: You're better off buying a fan with good reviews with a three fan speeds (hard to find a quality one unless getting into the high price range but they sure aren't as expensive as a high quality air purifier).As for whether or not this item actually puts out ions, I don't know, they should have at least had a shoddy ion measuring device to indicate the ion output, but nope, it's worth LESS than garbage and belongs in the garbage.
I love this air purifier! I was looking for a good unit, willing to spend some money but I didn't want to spend a lot and I didn't want something so big that it would take up a lot of space on a bedside table or an end table. A friend of mine has a Holmes air purifier and is happy with it, but it is exactly that--too expensive for me and larger than I wanted.
Great purifier. I'm a college student living in an older house, and this purifier has made a huge difference. I noticed the change in air quality right away, and for the price it can't be beat.
Love these air purifiers so much. I turn the one in our bedroom on at night and gives that soft white noise. It's amazing how much dust it collects each month. We also have one in our living room. So glad I purchased them!
I ordered two of these. It is great for my nursery for white noise for my baby plus keeps the room dust free. I put the other in my bedroom which is fairly large and not quite as dust free as the nursery, but I am definitely cleaning less. I think it is a fantastic product for the price.
I was not disappointed. This model is a reasonable, medium size and looks very nice. It is less expensive and it is the same brand. In addition, it is quiet, which is a wonderful thing. Only on the highest setting or when I am standing right next to it am I aware it is running. Oh, I haven't said anything about whether it does its job! It does its job--very well!
My allergies used to be an issue every day, but this filter really did help! It makes a noticeable difference in the air quality and also helps reduce any funky odors when I turn the ionizer on. I'm asthmatic so I have noticed that the ionizer is better left on when I'm not home, otherwise I tend to wake up feeling tight. I keep the filter on every day - on high when I'm away and on medium or low when I'm home.
This air purifier works pretty good for Grandma at the nursing home so far! I like it pretty much. However, it's a little noisy when it's on the highest speed&#8943;
Air purifiers seem pretty subjective, but this one is at a price point where it's worth checking out. Looks good, not too loud at the medium setting. I have bad cat allergies and wanted this for our bedroom. Cats aren't allowed in the bedroom, but it's worth it to me to have as good a nights sleep as possible.Really can't say how well it filters the air, but I don't have much trouble sleeping with my allergies, so I assume it's helping.
Received this item in perfect condition and earlier than expected.We needed an air purifier for the bedroom, and wanted something that didn't take up too much space.Have been using this machine for about a week now. So, it has not had long-term use, but the air in there seems very fresh. What we especially like is that fact that there are 4 options. High, Medium (which we keep it on most of the time) and low if needed at night.
Answer: I have it working in a 475 Sq. Ft. room, and it removes all of the dust in the air. It also reduces the dust on surface areas, but I don't think any purifier will keep surface areas completely free of dust.