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FYNTRA

2026 Upgrade 5,500 Sq.Ft Essential Oil Diffuser - HVAC System, Jet

Based on 119 reviews
Condition: New
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$169.99
Save $30.00 was $199.99

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At a glance

Condition
New
Color
Jet
Size
5500Sq.Ft
Model
U4
Capacity
500 ml
Dimensions
7.8"L x 4"W x 5.51"H
Weight
8.6 lb
In the box
500ML Essential Oil BottlePower AdapterUser ManualWaterless Diffuser Unit

Features 5

  • Waterless DiffuserAdvanced cold-air, waterless diffusion technology uses high-pressure airflow to atomize essential oils into an ultra-fine, dry mist for efficient fragrance dispersion. No heat, no water, and no dilution are required, helping maintain the original fragrance profile while delivering a clean, consistent aroma experience. Designed for reliable performance in everyday home or commercial use.
  • HVAC Compatible Up to 5,500 Sq.Ft CoverageDesigned for seamless HVAC integration, this essential oil diffuser distributes fragrance through air ducts for consistent whole-home or commercial scenting. Dual spray heads support flexible installation, allowing standalone operation or connection to HVAC tubing. With coverage of up to 5,500 sq.ft, it is ideal for Large Room applications, including homes, offices, retail spaces, and hospitality environments.
  • Smart App Control | WiFi & BluetoothSupports 2.4/5G WiFi and Bluetooth connectivity for convenient control through the Aroma Core app. Adjust mist levels, create schedules, set operating times, and manage fragrance intensity directly from your smartphone. Whether you are at home or away, smart control makes it easy to manage your essential oil diffuser and maintain your preferred scent environment.
  • 500ml Large Capacity Up to 100+ Days RuntimeThe 500ml oil capacity provides extended operation with fewer refills. At the medium mist level, runtime can exceed 100 days under normal conditions, based on laboratory testing. With 7 timer settings and 7 mist levels, you can easily customize operating times and fragrance output using the built-in control panel or Aroma Core app for flexible daily scent management.

Description

FYNTRA specializes in advanced aroma diffusion technology for modern spaces. From home diffusers to HVAC systems, our solutions deliver consistent, efficient scent performance. Focused on precision, stability, and ease of use, FYNTRA creates reliable scent systems built for everyday environments.

Specs 29

Brand FYNTRA
Color Jet
Scent Essential Oil Compatible, Eucalyptus, Lavender, Peppermint, Unscented
Recommended Uses For Product Air Freshening, Aromatherapy, Home, Home Fragrance, Meditation, Office, Spa, Stress Relief, Yoga
Material Alloy Steel
Brand Name FYNTRA
Model Name U4
Model Number U4

Frequently asked questions

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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.

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  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

Great upgrade for the while house . I use it daily
Color: Jet Size: 5500Sq.Ft
Review Image by Will
I’m really impressed with this essential oil diffuser! I love that it’s designed to work with an HVAC system, making it easy to enjoy a consistent, pleasant fragrance throughout the house without having to use multiple small diffusers in different rooms. The design is sleek, and the setup feels like a great upgrade for anyone who wants their home to smell fresh and inviting. It’s a convenient way to create a relaxing atmosphere, and I appreciate the coverage this system is designed to provide. Overall, I’m very happy with this purchase and would definitely recommend it to anyone looking to elevate their home fragrance experience! ... show more
Reviewed in the United States on October 18, 2026 by Will
Work Great
Color: Jet Size: 5500Sq.Ft
I absolutely love this machine! It distributes fragrance evenly and consistently throughout the space without ever becoming overpowering. The built-in timer makes it easy to control when and how often it runs, and once it's set up, there's no need to keep adjusting it. The sleek, discreet design blends in nicely with any room while creating a relaxing and welcoming atmosphere. It's reliable, easy to use, and has exceeded my expectations. Overall, it's been well worth the money, and I'm extremely happy with this purchase. I highly recommend it to anyone looking for an effective and hassle-free scent diffuser! ... show more
Reviewed in the United States on October 7, 2026 by Mk
Can smell aroma throughout my apartment
Color: White Size: 5500Sq.Ft
Review Image by Doreen Kelley Morgan
I had several difussers throughout my apartment. So I was looking for one that would work throughout instead of multiple ones. I found this and thought I would give it a try. I am in shock at how well it has been. I can smell the aroma in every room of my apartment. I also like the fact that you just add oil, no water is needed. It has several modes you can use. I have mine on the lowest setting and it works perfectly. I also like the fact that it comes with a locking feature. It was easy to setup and had no issues getting it to work. I like that it's portable so I can move it anywhere I want to. Definitely a great value ... show more
Reviewed in the United States on October 20, 2026 by Doreen Kelley Morgan
Powerful diffuser and great scent coverage
Color: Jet Size: 5500Sq.Ft
I’m really happy with this diffuser. It was easy to set up and does a great job spreading the scent throughout a large area without being overwhelming. The design looks modern and clean, and it feels well made. I also like that I can adjust the intensity depending on how strong I want the fragrance. So far it has been working great and I’m very satisfied with it. Definitely recommend it if you want your home or business to smell fresh and consistent. ... show more
Reviewed in the United States on October 17, 2026 by Tony Piñeiro
Powerful essential oil diffuser!
Color: Jet Size: 5500Sq.Ft
Review Image by beautiful
Excellent essential oil diffuser! It can hook to your hvac system or work alone. It is a sleek black design. It has a very large bottle for the essential oil. Has several levels of out put for people who like alot of scent and the ones more sensitive. The unit is heavy duty, and has multiple different options to keep your house smelling great! We have a 2 level home and I was delighted that it did cover the whole house! Great diffuser!! Well worth the buy! ... show more
Reviewed in the United States on October 22, 2026 by beautiful
Great Diffuser for Large Spaces
Color: Jet Size: 5500Sq.Ft
I really like this essential oil diffuser. It has a sleek, modern design and works great for adding a pleasant fragrance to the room. I also love that it has a large coverage area, making it a great option for larger spaces. It’s easy to use and gives the room a fresh, relaxing atmosphere. So far, I’m very happy with it and would definitely recommend it. ... show more
Reviewed in the United States on September 20, 2026 by Luyanela
Essential Oil Diffuser
Color: Jet Size: 5500Sq.Ft
My husband was able to set this HVAC essential oil diffuser up in less than an hour. It hooks to our entire house making it always smell good. I love that it came with keys to keep the little kids out. It's small enough to stick behind your couch and not even notice it's there. Once it's set up, you can control everything from your phone. It's very simple and a great investment ... show more
Reviewed in the United States on September 27, 2026 by John and Lyndsay
Connecting iPhone app w/Bluetooth issues…beware.
Color: Jet Size: 5500Sq.Ft
This actually is a 5-star diffuser. Works well MANUALLY! But, doesn’t synch with Bluetooth which is essential to use of the App. Wi-Fi was simple. But it requires both for using the app. Which is a problem especially when connecting to the HVAC system. Their customer support is superb but it’s 12-hour off from US time so unless I want to connect live at 2 AM, frustrating. Unfortunately I just sent it back. Alexa suggested several other comparable units which connect Wi-Fi only so we’ve order one of them. Just think potential buyers should be aware. ... show more
Reviewed in the United States on October 15, 2026 by MJS
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