Aura House makes cold-air diffusers and clean-formulated fragrance oils in two sizes: 30ml and 400ml. If you're comparing alternatives, the differences that matter are oil sizing and cost per ml, diffuser coverage, where the oils are made, and whether your warranty depends on an active membership.
Comparison verified August 2026 from publicly available information on aurahouse.com. Specifications and pricing change — check both sites before deciding.
Scentia vs Aura House at a glance
| Scentia | Aura House | |
|---|---|---|
| Oil sizes | 20ml · 50ml · 120ml · 500ml | 30ml · 400ml |
| Mid-size option | Yes — 120ml | No |
| Entry oil price | $37 / 50ml ($0.74 per ml) | $40 / 30ml ($1.33 per ml) |
| Best value size | $47 / 120ml ($0.39 per ml) | — |
| Largest portable diffuser | Scentia Max — 1,500 sq ft | V3 — 650 sq ft |
| HVAC option | Casa — whole-home / commercial | HVAC diffuser — 2,500+ sq ft |
| Oils made in | USA — hand-poured in Miami, FL | Not stated |
| Warranty | 6-month manufacturer warranty, no membership needed | Lifetime — valid while membership is active |
| Subscription | Optional 15% Subscribe & Save, cancel anytime, no lock-in | Not required to buy; warranty depends on it |
| Phthalate-free · paraben-free · vegan · cruelty-free · pet-safe | Yes | Yes |
What sizes do Aura House fragrance oils come in?
Two: 30ml and 400ml. There is no size in between.
Aura House states a 30ml bottle lasts roughly one month in typical use. The next size up is more than thirteen times larger. That leaves you choosing between replacing a small bottle every month or committing a large quantity to a single scent.
How does the cost per ml compare?
Scentia works out cheaper per ml at every size.
Aura House oils start at $40 for 30ml — about $1.33 per ml. Scentia's 50ml is $37, or $0.74 per ml. The 120ml at $47 works out to $0.39 per ml, roughly a third of the Aura House entry price per ml.
The gap widens the more you use. A monthly 30ml habit runs $480 a year at Aura House's entry pricing; the equivalent volume in Scentia 120ml bottles is closer to $140.
Does Scentia offer a mid-size fragrance oil?
Yes — 20ml, 50ml, 120ml and 500ml.
The 120ml covers the stage most brands skip: you've found a scent you like and want more than a room-sized bottle, without committing to half a litre. The 20ml is for sampling, the 50ml suits a single room, and the 500ml is for whole-home or commercial scenting with the Scentia Casa.
Are both brands phthalate-free?
Yes. Both Scentia and Aura House formulate without phthalates or parabens, both state their oils are vegan, cruelty-free and safe around pets, and both are IFRA compliant.
This one is a genuine tie. If clean formulation is your only criterion, either brand meets it. Scentia oils additionally meet RIFM standards, are petroleum-free, comply with the Toxic Substances Control Act and California Air Resources Board VOC guidelines, and contain no carcinogens as defined by the NTP or IARC — full detail on our ingredient standards page.
Where are the oils made?
Scentia fragrance oils are made in the USA, hand-poured in Miami, Florida, and all orders ship from Miami. Aura House does not state a country of manufacture for its oils on its website.
Our diffusers are designed in the USA and built to US engineering specifications; the oils are the part manufactured domestically.
Which covers a larger space?
For a single portable unit, Scentia. The Scentia Max covers up to 1,500 sq ft against 650 sq ft for the Aura House V3.
Both brands offer an HVAC-integrated option for whole-building scenting. For smaller spaces we make the Pod and the MiniPod. Compare all four on the diffuser comparison page.
Do I need a subscription with Scentia?
No. Scentia diffusers and oils are sold outright, and your warranty doesn't depend on an active plan.
Aura House offers a lifetime diffuser warranty through its membership, valid for as long as that membership stays active. Scentia includes a six-month manufacturer warranty with no ongoing commitment. Our optional Subscribe & Save gives 15% off refills — pause, swap or cancel at any time, with no effect on your warranty.
Which should you choose?
Aura House may suit you if a lifetime warranty matters more than the membership it's tied to, or if the 30ml monthly rhythm matches how you use fragrance.
Scentia is likely the better fit if you want lower cost per ml, a mid-size bottle, US-made oils, more coverage from one unit, or ownership without a recurring plan.
The lowest-risk way to compare is to try the scents. The Top 3 Sample
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