Alen 75i Air Purifier for Extra-Large Rooms up to 1300 SqFt - HEPA Filtration System & Alen FLEX Air Purifier for Large Rooms up to 700 SqFt - Ultra Quiet Air Cleaner for Home, Office, Bedroom, and Allergy Relief

We live in an older home and dust and other flying debris is rampant. I am allergic to dust and almost constantly having to wipe my nose. I've been wanting one of these things that would actually clean the air I breath in my home. I read on Consumer Reports that this one did what I needed done, cleaned the air of the particles I could see floating in the sunlight coming in the windows.It is a bit expensive but what is the price on one's health. I rolled the dice, it came, way to simple to set up, just very nice. The proof was in the air quality. I set it on automatic and it started running on high with the circle of light showing dark red. After a few hours the circle air quality indicator gradually turned green. I noticed the difference soon and am breathing much better now. I love this thing. Worth the cost if you want to breathe clean air in your home. When I cook anything in the kitchen(one room away from the machine) it kicks into high gear, the light turns toward the red and it goes louder until the air is clean again. I only hear it running when the air quality deteriorates from some known source. It cleans the air of dust, smoke and other stuff I'm sure I don't want to breath. Like I said, I love it.I recommend this product.Purchased this product in Feb/Mar 2021. It took nearly one week for it to change from hoovering between poor (purple) to average (orange) air quality and move up to the excellent (blue) to above average (green) air quality. The device sits in an open area in an 825 SF room and is advertised to clean the air in a 1300 SF room once every 30 minutes. Yet, buried in the fine print is that it may take at least 40 hours after first plugging in the device to clean the air and keep it ranging in the blue/green air quality ranges. After that first week, it has stayed in the blue/green air quality ranges and only changed to purple, red, or orange when the back door was left open. Even then, it moved back up to Blue/Green air quality within just a few minutes of closing the door. It has been operating that way for about 10 months. Then about 3 to 4 weeks ago, the light went to purple - worst air quality indicator light - and has stayed there. I've seen the red light once and I've seen the orange light twice in the past 3 to 4 weeks, otherwise, it's been on the poorest air quality (purple) the remainder of the time.UPDATED JANUARY 21, 2022:Friday night, I called Alen. Their offices were closed, but I was able to get CS support via an online chat. That will be the last time I ever do that. I've been in contact with CS on the phone multiple times since purchasing both my Alen air purifiers, and over the phone, I've always had the most helpful and courteous support representatives. My experience with online chat left me more than disgruntled. I even downgraded my review from 4 stars to 1 star and posted the ridiculous chat session where the CS rep told me to calm down or she was going to disconnect the chat session. How crazy is that since I was not even upset and had said nothing to warrant that kind of abuse? The rep was unclear, giving confusing instructions, constantly chiming in while reading my posts in real time and not giving me a chance to read her posts or finish what I was typing before chiming/chirping in. It was like having a phone conversation with someone who keeps talking over the top of what you are saying, interrupting you when you try to get a word in edgewise, etc. Then they abruptly get angry with you and tell you to be quiet and listen.Anyway, I posted the chat session on their FB page and called and left a message on their phone system.The chat session was deleted from their FB page, but I did get a message left on my voicemail from the CS rep on Saturday who was so arrogant, unclear, and angry the previous night. She apologized, but I couldn't tell if it was out of fear or because she was sincerely sorry for her rudeness.Monday rolls around, and I still needed to get my second device registered online and under the lifetime warranty system. I spoke with a CS rep who was as nice and helpful as she could be. I was unable to complete the task due to being on my phone, but I called back when I was able to get to my computer and talked to another CS rep who was also as helpful, kind and courteous as could be on the phone. Then I got a call later in the day from the post I had made to their FB page and the voice message I had left on their phone. It was from Management. They apologized profusely for the incident and talked to me for about 30 minutes, or longer.So, after being frustrated with 1 CS rep over the course of nearly a year, I have decided to stay away from online chatting for CS support and stick to the phone during normal operating hours.The problem with my device is now believed to be due to the extremely cold, harsh Winter weather, the furnace plowing hot air with dust from the ductwork constantly and the humidifier I had setting in the opposite end of the room because all the hot air blowing with all the dust from our furnace was causing the room to be too dry.I did take the unit into the small bathroom and turn it on with the door closed. The air was clean and back up to blue status in about 2 hours. Then it got really cold again - below freezing into single digits - the heat was turned up higher and the furnace was blowing through the warm air almost constantly. The light has since changed and is hoovering between purple and orange again.The point is that as long as the lights fluctuate on the device and do not stay the same color without ever changing for a 2 week period, there is probably something like a humidifier or dust blowing out of the HVAC duct work due to having the heat running higher.We shall see.....I'm now registered for both devices and am on the lifetime warranty plan with filters to be delivered every 12 to 15 months. Let's hope the warranty holds up in case this thing does stop working properly.I'll get to why I knocked a star off my review in a minute (check out my update at the bottom, back to 5 stars). Just know, this thing is amazing! I wouldn't call it a great value, but it's worth every single penny. We have 4 dogs in a single story open design of about 1250 square feet. I instantly noticed a huge improvement in air quality within a short time after turning it on! The auto function works amazingly well. It will be sitting there on it's lowest fan speed, having successfully cleaned the air all day/night. The little blue circle indicator light tells you your air is currently at it's cleanest. I'll light up a joint about 20' from the purifier and within a minute or so I'll notice the fan speed crank up to its fullest! (It's still super quiet though, even on its highest you can't hear it with a TV on) Red indicator light! Then purple! It tells me right away that my air has been polluted and it's working to fix it. Within 20 or 30 minutes, the whole house is completely smoke and scent free! It's perfect for all you well-to-do stoners such as myself. You make good money, you have nice things, you're a grown up now! You don't want other adults coming over to your marijuana smoke filled house. Especially all your friends with kids. Or maybe you have kids? What kind of an example are you setting!? Opening the windows on a nice day only does so much. And if you have cold winters and can't open the windows, what then? You buy this thing ya dummy. All those problems will be solved.I knocked off a star because my wife is making me return it. She doesn't like how it looks. I don't think it's terrible. It's the great air purifier paradox: In order for it to work well it's needs to be out in the open, but to be out in the open it needs to not look stupid. There's a lot of air purifiers that I passed over based on looks alone. This one I was on the fence about, the color choice of the panel helped push me over. I'm going to add a picture to this review. If you agree with me and think it's looks not that terrible, leave me a comment! Or if you're wrong and agree with my wife's decision to return it, please don't let me know.Anyway, you can turn off the panel lights by pressing the big colorful button in the middle while it's running. That's obviously nice if you're gonna use this in a bedroom. It'd be nice if you could turn the panel lights on and off without having to turn the entire unit off. Seems like an unnecessary power cycle just to adjust the lights. But hey, it's got a lifetime warranty so who cares if it breaks from excessive power cycles!Long story longer - I'm going to have a hard time replacing this with something else, especially with how well it works. The bar is set REALLY high for cleaning the air in my house now after owning this thing for only a few days. I'm addicted to the fresh air. I work from home and spend a lot of time here. It feels really nice. I will caveat this entire review and say this is the first air purifier I've ever owned. Maybe they all do pretty well? Most of the major players have good reviews. I think it comes down to aesthetics when you spend this much. We don't have a ton of space in our house, so this thing has to sit right out in the open for everyone to wonder and ask what it is. It has to look good. I'll admit that it's not the sexiest. Unfortunately, function over form is losing this battle to form over function this time.P.S. - what maniac thought purple was the right color to indicate your air quality is at its worse!? Why would red indicate the second worst air quality?? Is there some standardized air pollution color rating system that I'm just not aware of?****Update 2 weeks in, back to a 5 star review****OK, we tried to replace this unit with a different, more aesthetically pleasing purifier. We tried the Coway AirMega 400. It looks great, covers a similar square footage, and has even better features than this Alen 75i unit....but it flat out just didn't work as well. It was also MUCH louder. With this Alen 75i unit in the same exact position as the Coway AirMega, the air was noticeably cleaner and smell free. Also, on it's loudest setting the 75i is hardly noticeable with a TV on. The Coway AirMega was at least 4 or 5x louder on it's loudest setting...to the point where you didn't want to run it on it's highest setting unless you weren't home.We tried this unit in a few different positions around the house, some out of the way where it didn't work as well, and now in it's new spot (different from the pictures I posted) and it's seriously great! My wife isn't thrilled with the spot we landed on, but it works really well and isn't as bad as she once thought. Seems that function over form has come through to win in the end!This is an excellent air purifier and very quiet. Purchasers should be aware that Alen states that the lifetime warranty does not apply outside the USA so Canadian purchasers are out of luckFirst of all, this (75i) is an excellently designed and manufactured air purifier; its good features have been discussed by other reviewers so there is no need for me to repeat. I just want to add one comment: its internal sensor is sensitive to water droplets as well as real dirt in the air; therefore, the mist from a humidifier triggers a "purple" easily. This can wake you up in midnight if you leave it in auto mode. Nevertheless, I would still give it five stars if there weren't the problem discussed below.The major issue which made me consider returning it is that, for Canadian buyers, there is virtually NO WARRANTY at all! Alen does not provide any warranty - no even 1 year - for units purchased through amazon.ca, which is the only place we Canadians can buy it from. iTech Canada, seller on amazon.ca, only provides a 30-day return policy. Therefore, if your unit breaks down on the 31st day, you are totally on your own. In addition, the so called "forever warranty" is only available to buyers in the 48 contiguous states in the USA, and is NONEXISTENT for Canadians. All of the above frustrating information is not available on amazon.ca at all! You don't get it until you buy a unit and research on your own. So, go ahead to buy it if you are willing to take chance, like what I did; otherwise, stay away from it.Couldn't believe how quiet this Alen 75i is. Set up was easy, back handle, balances unit nicely when moving, also has 2 wheels to make it easier if needed..My wife was pleasantly surprised and loves the auto mode that increases the fan speed if the laser sensor identifies any additional air particles due to cooking.Even though this unit was higher priced, Consumers Report rated this number 1, and I can see why.Filter is expensive but lasts between 12 to 18 months which makes it one of the cheapest to run over time. Most other air purifiers recommend filter changes every 6 months. Look at operating costs when you compare units. Also one of the few energy efficient units available for larger areas.Highly recommend.This is expensive & I don’t mind spending the money…well designed & very functional - either automatically adjust fan speed or manual. I love the light which indicates air quality (this can be hidden too)…all in all a good investment. I sometimes get whiffs of clean air like the mountains. If you choose to buy one be careful to select the filter to most suite your needs - easy to missLove that it's much quieter than my small Honeywell. I can sleep with it on. I also love the auto mode which changes the speed as air quality changes. I had burned oil in my oven [terrible fumes] and I opened all windows and doors for a good while..but turbo mode cleared the fumes which remained in a half hour or so. This, imho, is a good product.