2025 Upgraded 3500 Sq.Ft Smart Scent Machine - HVAC System, Whole House Aroma & Hotel Collection Diffuser, Waterless Essential Oil Diffuser for Home, Office, 600ML Capacity, Cold Air Tech (White)

This was super easy to connect to my HVAC system and my whole house smells amazing. It works as stated and the app is very easy to use and set up. After I bough it the box was thrown away with the locking key and alternate diffuser top for a counter set up without the HVAC connection. I reached out to Aromadd's customer service about replacements and they are sending replacements with no issues. Their customer service was very quick at replying and replacing parts that we lost at no cost. Very happy with their customer service. I highly recommend their product.

Ive had the U5 for about a year. It has worked great. I used it with the HVAC and programmed it to get off a sent that kept the whole house smelling great. During a recent move the nozzle broke off. I reached out to support and they responded quickly. Once I showed my order number and what broke they are replacing it with out any fuss. Rarely have I delt with this great of customer service, and so quickly.

This is by far the best investment I have made to make my home smell good all the time. I've tried everything from plug ins, candles, wax melts sprays you name and it would last 1 week if that and then nose blind or it just wouldn't be as powerful. I had purchased another diffuser not this brand, but sent it back because it was loud and didn't work if my phone was not nearby. I decided to pay alittle more and try this one. AMAZING! first off it connects to my wifi and I control it through the app from anywhere. Very easy to setup for me. It took me awhile to adjust it to the perfect setting though but that's normal I didn't want the scent over powering nor too little so you have to play with it for awhile. It is a quiet machine compared to the one I had tried out, I can visibly see the mist and it fills my home with greatness. My house is a 2600sqft and it reaches to my second floor without connecting it to the HVAC. I notice the scent even comes into my office upstairs with the door closed. Im truly impressed and I hope it lasts me for a long time. I purchased a 4oz scent to try and see what scent I want for my house and let me tell you, it's been over a month already and there is still scent in the bottle to last me awhile. I can only imagine how long it would last if I filled up the diffuser bottle to the top. I understand some people have had issues with theirs but I have not and am greatful. Thank you Aromad for finally making this product and I can throw everything else away! I only need this in my home.

I’ve been using this smart scent machine in my home, and overall it works very well. One of the first things I noticed is that people immediately comment on how good the house smells when they walk in. The scent coverage is strong and consistent without being overwhelming. The automatic function is a big plus. Once it’s set up, it’s pretty much set it and forget it. It runs on a schedule without needing constant adjustments, which makes it easy to live with day to day. Installation was also fairly simple and didn’t take much time. The app does its job, but it feels a bit unrefined, and the connection to the device can be temperamental at times. That said, this isn’t a huge deal because once you’ve set your schedule and scent strength, you rarely need to open the app again. There is one thing worth keeping in mind, especially if you live somewhere with cold seasons. This is unverified, but based on my experience: if you run the diffuser regularly while not using your AC and then switch over to heat in the winter, you may notice some “smoke” the first time the furnace kicks on. When I turned on my heat for the first time this season, my home filled with a noticeable amount of diffuser-oil-scented smoke. My assumption is that the oil either coated the ductwork over time or possibly made its way into the furnace, and then burned off when the heat was first used. After that initial occurrence, things returned to normal, but it’s definitely something to be aware of if you plan to leave the diffuser running year-round without HVAC airflow. Pros: • Works very well and distributes scent evenly • Guests notice and compliment the scent when entering the home • Automatic mode makes it mostly set and forget • Easy installation • Large capacity, doesn’t need constant refilling Cons: • App feels a bit unpolished • Device connection can be temperamental • Potential oil buildup in ductwork or HVAC system (unverified) • Possible scented smoke when turning on heat for the first time in winter Overall, this is a great scent machine that does exactly what it’s supposed to do and makes the house smell great. Just be mindful of how and when you’re running it if it’s connected to or near your HVAC system, especially during seasonal changes.

Amazing!!! I have 4 large inside dogs that love to run around our yard, roll in the grass and swim in our pool. I always feel like my house smells like wet dog, no matter how much I bathe them. We connected this to our a/c duct in the attic. It was so easy and took under 5 minutes to do. We could immediately smell the scent throughout the house. I love that it's Bluetooth and I can work it from my phone and set schedules.

I am beyond impressed with the 2025 Upgraded 3500 Sq.Ft Smart Scent Machine. From the moment I set it up, my entire home smells like a luxury hotel. The HVAC integration works flawlessly and distributes the scent evenly throughout the whole house—no overpowering spots, just a clean, consistent aroma everywhere. The 600ML capacity is a huge plus and lasts a long time, making it very low-maintenance. I also love that it’s waterless and uses cold air diffusion technology, which keeps the essential oils pure and long-lasting without any residue or moisture issues. Setup was simple, the machine is whisper-quiet, and the sleek white design blends perfectly into my home. It truly transforms the atmosphere—guests constantly ask what scent I’m using because it smells so high-end and professional. If you’re looking for a whole-home scenting solution that delivers real hotel-quality results for your house or office, this is absolutely worth it. Highly recommend!

Update Dec 25: customer service reached out and gave me some tips to troubleshoot. They did not work so they have refunded me for the unit. Another nod to the wonderful customer service you will get. I changed the rating on my own as a result of how customer centric this effort was. First: the customer service is amazing. I wanted a couple of extra bottles to change scents because they are HUGE. I couldn’t find them to purchase and when I reached out to customer service, they sent me 2 for free. I’ve had it for a couple of months before leaving this review. Note: I do not have this attached to my HVAC under advice from my HVAC maintenance people. Oils in HVAC is not a good mix so I am Just using in the house. Pros: It works, it looks nice, it is very sleek and “hideable”, excellent customer service. Cons: Scheduling in the app is pointless for two reasons. First because you can’t connect to control it unless you’re in the house. It’s Bluetooth based not WiFi enabled. And secondly because it goes off the rails and does what it wants- it looks like your settings are saved and then you’ll notice you’re about to die from fragrance overload because it’s returned itself to default settings and it’s ALL THE TIME!. After the 8th time of programming I was cussing. Biggest issue because I want it to be lighter when we are home. The default settings are choke level: think teenage boy and AXE body spray level choking. It’s also loud hissing sound when dispensing. Unless you’re raising cockatoos and orangutans or blasting Bon Jovi 24/7, you are going to hear this thing. We can hear it anywhere in the house and we have a single story split level around 2800 sq ft. There is programming on the unit itself. They don’t stay set either. It’s like the app wipes the memory clean when it decides to whack out. The bottles are too big. We like to change scents and with it taking straight oil, it’d be nice to change them more often. The bottles last FOREVER even with just 1/2 cup of oil in it. Add that the app is a psycho, you will get sick of even your favorite smell really quickly. I wish they sold bottles of fragrance that fit the unit so you could swap those out instead and cap it for storage. NEEDS WORK IN THE APP! Seriously consider this before purchasing. It actually is so bad that I don’t feel the unit is worth the money and wish I had bought smaller rechargeable diffusers with manual timers instead of this one.

This machine really does make the house smell like a hotel WHEN it’s running well, the fragrance fills my 3000sqft home pretty good after long runs and feels luxurious. The smart controls on my phone are and I like being able to adjust the intensity and schedule straight through my phone. That said, it has its lows. It can be a little loud at times when I have visitors they always asks what that "noise" is and the scent doesn’t always stay consistent that sometimes it fades quicker than expected. I’ve found that filling it only partway (1/4 full) and pausing between runs helps keep the smell from disappearing too fast. Only use oil and not dilute it with water, this is not meant for that. So oil content and quality really matters when using. For now I’ve only used it as a standalone unit (not hooked up to HVAC yet) and even then it covers most of the house nicely. Pros: Covers pretty much the whole house, easy to control, hotel-quality fragrance Cons: A bit noisy, scent fades unless managed carefully Overall, it’s a solid upgrade and worth it if you want that high-end aroma at home for a value of the cost but it takes a little tweaking to get the best results.