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 (Black)
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Thursday, Feb 26
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Color: Black
Features
- Acrylic
- AROMADD 2025 NEWLY UPGRADED: The Aromadd waterless essential oil diffuser utilizes the latest cold air diffusion technology, combining cold filtered air and high-pressure air to fully atomize the essential oil into fine particles for efficient diffusion. It does not require heating or adding water, and can add fragrance to your environment within minutes, bringing high-quality aroma to the entire room
- LET EVERY CORNER BE IMMERSED IN FRAGRANCE: The Oil diffusers for home large room has an incredible coverage of 3,500 sq.ft. With a capacity of 600ml, the waterless essential oil diffuser can run for up to 120 days, eliminating the need for frequent oil refills. It can add fragrance to your entire home, office, spa center, or commercial space, making every corner smell and feel like a 5-star hotel
- PERSONALIZED SCENT WITH BLUETOOTH APP CONTROL: Our smart scent air machine is an ideal choice for enhancing your scent experience. Through Bluetooth connectivity, you can easily customize multiple advanced schedules, including operating dates, specific times, mist intensity, working time, and rest time. Compared to ordinary essential oil diffusers on the market, it is smarter, clearer, and able to simplify your maintenance routine. Enjoy a customized scent journey to the fullest
- AROMADD HVAC DIFFUSERS FOR EVERY ENVIRONMENT: Whether as a standalone unit or wall-mounted, Aromadd diffusers are designed to seamlessly integrate with both new and existing HVAC systems, delivering an even and consistent fragrance throughout larger spaces. Perfect for homes and businesses, they ensure an immersive scent experience with maximum coverage and efficiency
- MESS FREE & NOISE FREE: The Aromadd essential oil diffuser is designed to leave no mess or residue in your room, unlike other cheap household scent diffusers. It features a silent atomizer that allows you to relax without any noise disruption. The Aromadd diffuser can be easily installed on any wall or floor, and its unique design allows for seamless connection with your HVAC system
- WHY CHOOSE AROMADD ?: The reason for choosing AROMADD is because we not only focus on product performance but also place great importance on scent experience. We are committed to creating the ideal atmosphere for every home and commercial space. AROMADD's hotel collection diffuser uses advanced technology to transform scents into dry particles, allowing every breath to evoke beautiful memories and emotions. AROMADD's mission is to provide everyone with a 5-star hotel scent experience in their daily lives
- EXPLANATION: The new scent air machine for home does not contain essential oils. Product Size: 9.3 "L x 4 "W x 10.4 "H, Product Weight: 7.7lb
Brand: Aromadd
Color: Black
Scent: 24K Celestia, Bergamot Coastal, Blacktail Ridge, Vanilla Silk
Recommended Uses For Product: Commercial Spaces, Daily Home Use, Hospitality-Level Atmosphere, Odor Improvement, Whole House Fragrance See more
Material: Acrylic Front Panel, Aluminum Alloy Body
Brand: Aromadd
Color: Black
Scent: 24K Celestia, Bergamot Coastal, Blacktail Ridge, Vanilla Silk
Recommended Uses For Product: Commercial Spaces, Daily Home Use, Hospitality-Level Atmosphere, Odor Improvement, Whole House Fragrance
Material: Acrylic Front Panel, Aluminum Alloy Body
Special Feature: 3500 sq.ft Coverage, 600ml Large Capacity, HVAC Whole-Home Scenting, Smart App Control/Built-in Hidden Fan/Low Noise/Cold air Technology, Touchscreen Control
Capacity: 600 Milliliters
Floor Area: 3500 Square Feet
Model Name: U5B
Product Dimensions: 9.2"L x 4"W x 10.4"H
Coverage: 3500 Sq.Ft
Shape: Square
Auto Shutoff: No
Number of Items: 1
Manufacturer: Aromadd
Unit Count: 3500.0 Square Feet
Item Weight: 8.62 pounds
Item model number: U5B
Fabric Type: Acrylic
Assembly required: No
Batteries required: No
Included Components: 1 x Adapter, 1 x Diffuser machine only (fragrance oil not included), 1 x Manual
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Feb 26
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Black
Easy to set up great product. I can’t believe how quick and easy it was to start using and my condo smells amazing. Quiet with very little noise.
Reviewed in the United States on February 2, 2026 by Lynda A Johnson
Color: Black
Bought this scent machine really just to try something new and it has honestly exceeded my expectations. Right out of the box it looks solid and way nicer than a lot of basic diffusers I have seen. Setup was not confusing at all and honestly pretty quick once I downloaded the app and paired it. The Bluetooth controls make it easy to adjust schedules and intensity without having to stand next to it every time I want to change something. The coverage is insane. I run it in my whole main living area and it fills the space with a nice scent that actually lasts. I was worried it would be weak or too subtle, but it definitely shows up without being overpowering. I even hooked it up to the HVAC system in my house and it spreads the aroma really evenly, which is awesome. Another thing I like is that it does not leave a mess or make the room feel humid like some other diffusers I have used. It feels like I stepped into a high-end hotel lobby rather than just turning on a plug-in air freshener. Overall this has been a great upgrade to my home and I would totally recommend it to anyone who wants a sleek and powerful scent solution for big rooms.
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Reviewed in the United States on February 1, 2026 by Colt
Color: Black
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.
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Reviewed in the United States on January 21, 2026 by arvilla arvilla
Color: Black
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.
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Reviewed in the United States on December 21, 2025 by Matt’s Reviews & Recommendations Matt’s Reviews & Recommendations
Color: White
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!
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Reviewed in the United States on January 3, 2026 by franky molnar franky molnar