Toshiba Air Purifier CAF-W36USW UV Light Sanitizer, Designed for Smoke, Dust, Odors, Pollen and Pet Hair for Home, Office, Bedroom, Black

My kiddo has really bad allergies and would cough a lot when they slept, so I got them an air purifier. I chose this one because of the decent reviews and price. Had it running 24/7, and within a few days their coughing disappeared. Even when I forgot to change the filter, the air quality was still pretty good. It's as loud as a regular fan would be, which is helpful for when they're sleeping. I had it running 24/7 for several years. The past 2 years or so not as often, just because the kiddo turns it off to draw. It's just as quiet as it was 5 years ago and functions exactly the same. The only thing is the back panel warped a bit, but I'm not sure if that's user error or quality. I'm sure my kid has knocked it over quite a few times, so it was probably that. It still stays in pretty well.5 years later I can still find the filters, it still works. I don't see this too often, but this purifier was built to last. I expect it's lifespan to exceed the 5 years I've already owned it. We've just bought another one for another room. I'd buy one for every room if I could.

Love it. Was cheap at least at the time, I think we paid less than $80 for it, maybe even $50. Hard to remember since this review is two years later! (I'm on a review writing kick)But yea, great quality, powerful, works great, looks great, quiet. Really helps with strong smells while cooking. We don't use the UV light function a lot but funny enough that's why we got it. My dad was going through chemo at the time and we were extra paranoid about any and all possible pathogens since he had not immune system so we wanted the UV. I don't know to what extent they helped but they certainly ran 24/7 and gave us peace of mind. And dad is still alive.The house must be clean because the filters still look great. Never had to change or clean them yet but the DO collect stuff. Haven't used the Alexa function because we don't use that kind of crap but it's cool that it's so feature rich.Cant recommend them enough but they are more expensive now so there's that to consider vs. whatever new option may be out there.

Wi-Fi - like a lot of (most!) IoT devices, it does best on a dedicated 2.4GHz ("B" band) network with other brain-damaged devices. If you put it on a network (SSID) that spans 2.4 and 5 GHz, it's going to lose its connection back to Alexa and will start flashing the frontmost green LED. This could be because of band steering or it's because the Wi-Fi on the microcontroller is a bit out of spec. What I do know is that once I ditched my Asus networking gear I don't think that it has lost the connection to the 2.4GHz network nearly as often. When that happens, simply love your phone over to the 2.4GHz network and go through the steps to re-add the device to Alexa - assuming you left the default name First Air Purifier on place. Note that I didn't say that you had to delete the device out of Alexa first - turns out you don't need to do this step.This lives in my bedroom and if the gunk on the pre-filter is to be believed, it does a good job at trapping dust in the air. It's not a 100% solution - things still need dusting.It's not annoyingly bright - I do like it to be very dark at night and its indicator lights are the dimmest in the room.Changing out the pre-filter and filter is easy enough - pop the back off, do the thing, pop it back on, then press and hold the UV button until the indicator stops flashing blue.

I love this filter, but not so much to begin with. Initially I had both the blue and green lights blinking and it wouldn't connect to anything. The filter worked fine for what it was supposed to do with the manual buttons, but once I settled down, it only took a few minutes, turning on a light and unpacking a few brain cells to get everything connected and working the way it was supposed to.I'm sure all this was included in the setup directions, but being male and moderately capable in technology, my wife says I tend to avoid those in favor of having challenges to solve so I can prove my worth around the house. I think it's more that I just hate wading through useless directions telling you 78 ways to not use your new appliance that never crossed my mind. Nope, taking my air filter into the shower wasn't even a consideration, but I'm sure there's a really entertaining story in there somewhere.On startup, the blue light was blinking which supposedly means that the filter needs to be changed. Not likely just a minute or so after initial startup. The solution is to hold that button down for a few seconds till it gives a very faint beep. Don't hold it down any longer than that... as with many things, more than enough isn't necessarily better and might actually hold up or reverse the process.That left the blinking green light to solve. Again while the directions said hold it for 3 seconds, I held it for about 10 seconds just to be sure. At that point it beeped numerous times at me and as it turns out, that was the filter's way of saying, "knock it off". Nope - wouldn't connect to Alexa and the app just gave me error messages. So I went back and just held it down till it beeped once and like magic, then it connected.With everything working, let me tell you about the number of ways that I like this and how great it is, in no particular order.1) This pushes as much air as my old air filter but only weighs about 20% as much, meaning it's easy to move and takes up about 1/3 the floor space.2) It actually kinda looks pretty slick and fits in with just about any decor.3) The Alexa function is spanky. On/off and increase/decrease speed. Also turn on/off UV mode. You can also create a routine with this but I honestly don't plan on turning this thing off till 2020 his in my rear view, and I'm not sure about then.4) Since beginning operation, our required dusting is significantly less. Since we have allergies to dust, this has made everyone feel better. Also of note, dust is a known pathway for various pathogens so it makes sense that reducing the dust could improve health and the immune system less encumbered.5) I don't burn things in the kitchen very often, but general odors from cooking are quickly reduced while running this filter on high, and guests say they can't tell what we had for dinner just a couple hours later. I expect fish fry night may put that to a test and could mean I'll have to change the carbon filter much sooner.6) Super quiet. All you hear is the sound of the air going through the machine. On low setting, you could have this right next to you and not have it interfere with a conversation. We have ours on the far end of the living room with seating in the middle and the television at the other end. On high speed, there's no interference with television sound.There is a claim in this page for [UVA sterilization]. I have serious doubts here as I've not been able to find any corroborative information and in fact several sources say that UVA doesn't sterilize anything. Also, even when UV does sterilize, it depends on how long the pathogen is exposed. This filter pushes air through at a very good rate, and even on low speed, I can't see that anything going through the filter would be exposed to any UV light for more than a split second. Sounds like a gimmick to me, but take it for the opinion that it is and welcome information that tells me how they can accomplish this task and independent labs that would have verified this is what is happening.