Blueair - Blue Pure 411 161 Sq. Ft. Air Purifier - White - White

My place is cleaned regularly. However, dust builds up quick perhaps cos a window is always open. As I have asthma, I was looking for a solution. For me, this was perfect and works well. Its looks ok, has HEPA filter and comes with two cloth socks to go over filer (mine were gray and blue.) Extra filters can be bought on Amazon for $20 dollars. One can also buy extra filter socks for when others are being washed.

Great product. My mom was cooking and something was burning. I notice when I open the door of my room. All the house has the burning smell but my room. Looking to buy 2 mores.

Overall I’m pretty disappointed with this air filter. I put it in my small bedroom, which is less than 100 sq. ft, and let it run on the HIGH setting (which is incredibly loud) day and night for the past 4 days nonstop and I’m still seeing A LOT of particulate floating around in the air, like literally no less than before I got the filter. I have bad allergies and they’ve not improved at all, they almost seem worse. It seems like all it does is blow the air around. I even picked it up and was holding it in the air right next to particulate I saw floating around and I couldn’t see anything being sucked in. If it can’t suck up particulate that’s directly next to it then I’m not sure how this thing is capable of cleaning the air in an entire room. Aside from its poor performance, it’s also been producing a bad smell, it’s hard to describe but the best thing I can compare it to is old paper, like a stale, old smell. It’s supposed to get rid of odors but now my entire apartment smells old and stale. The settings also make no sense, on the low setting the fan spins so slowly that barely any air is being moved, then the medium setting the fan spins very loudly, and the high setting is even louder. There should be a fourth setting in between the low and medium settings that’s actually functional but not really loud. Regardless, I could overlook the noise if it actually filtered air, but it doesn’t perform its most basic function. I wish I’d have spent the money on a better filter, I feel like I’ve wasted $120.

Strong air suction capability cleans the area quickly.

This air purifier is perfect for my small bedroom. We have forced air heating, and pets, and although our heating system has a filter we still see dust and hair flying around. This simple machine is easy to set-up, being almost ready to go out of the box, and doesn't have confusing options to figure out, just 3 settings, low, medium, and high. I use the machine on low during the day when I am not around, and medium when sleeping (I appreciate the white noise). The highest setting is rather loud, and not as pleasant as others have noted. I have found this setting to be most useful when I am cleaning/dusting/vacuuming and stirring up dust. This will just clear all of that from the air, so it doesn't settle back on surfaces, which is fantastic! The dust accumulation has reduced dramatically since using this, I rarely need to clean/dust, which is an added benefit. I'm an allergy sufferer, and my sinus are clearer when I wake-up when using this. I have not yet replaced the filter, but the current cost, and ease of replacement seem reasonable for the benefits. I like the washable fabric pre-filters, it comes with 2, though I recommend vacuuming it occasionally especially right before your remove it to wash, so the dust doesn't go flying. Simple machine, but works well. My one major complaint, the supposed "night mode" which is supposed to dim the control lights after 7 seconds, is non-existent as far as I can tell, and the lights are bothersome to me when sleeping. I simply took a marker and tinted the lights, but I wish this feature was functional. As this is energy star certified there may be rebates available depending on your location.

We bought the 411 to try and it ended in our bedroom. Wicked easy to setup, literally just pull out of the box, plug in and turn on. I actually had to put my ear down toward it to make sure it was working when I turned it on, it genuinely is dead silent on the first level. We leave it on the first level during the day and turn it to the second at night. Second level is a little louder but still not bad at all, we prefer sleeping with noise anyway. Maybe comparable to a small fan. Within two days we noticed a difference and within a week, a huge difference. The room smells fresh, it’s crazy. We’re about a month in and it’s great. It’s been moved into the home office a few times too. Wicked light! Will either be washing or vacuuming the prefilter for the first time this weekend. We love this so much, after the first week we bought the 211+ for the living area. Genuinely happy with the purchases.

I don't know why I didn't buy one of these sooner. I have indoor and outdoor all-season allergies and recently acquired a cat, to which I'm also allergic. I must have gotten used to feeling crummy all the time because I noticed a difference within minutes of turning on this purifier. It's very easy to set up and use and has been running non-stop in my bedroom since I got it. I feel so much better in the morning (unless the cat sleeps in my face all night), and I've noticed I don't sneeze at home at all anymore. I swapped out the blue pre-filter for the gray because I figured it'd be easier to tell how quickly it got dirty. Surprisingly, I didn't notice much trapped in it until about a month of use, but it's nice they included two so you can keep it running while washing one. I keep mine on high, and it doesn't disrupt my sleep at all. (It's nearly silent on low.) Overall, a good purchase, and I'd consider buying the other models for larger spaces.

It is quiet. I can set the speed and keep it there all night and not be woken by changes in the pitch of the motor speed. It has helped my allergies