Our verdict
The Aroma360 Diffuser and HVAC Diffusers are close. We gave the Aroma360 Diffuser a slight edge at 8/10 over the HVAC Diffusers at 7.5/10 — close enough that fit matters more than the score. Outperforms competitors on scent dispersal and runs nearly silent, but a limited scent library means it's only worth it if you love its specific scents.
Our pick
Aroma360 Diffuser
$149
Check priceRead our full review
HVAC Diffusers
Side by side
| Attribute | Aroma360 Diffuser | HVAC Diffusers |
|---|---|---|
| Our rating | 8/10 | 7.5/10 |
| Best for | Outperforms competitors on scent dispersal and runs nearly silent, but a limited scent library means it's only worth it if you love its specific scents. | HVAC diffusers beat candles and plug-ins for large open spaces, delivering hotel-quality results but requiring higher energy and oil costs. |
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| Watch-outs |
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Which one is right for you?
Choose the Aroma360 Diffuser if…
Outperforms competitors on scent dispersal and runs nearly silent, but a limited scent library means it's only worth it if you love its specific scents.
- Outperforms Pura on raw scent dispersal
- Fills 400 sq ft room quickly and runs nearly silent
Choose the HVAC Diffusers if…
HVAC diffusers beat candles and plug-ins for large open spaces, delivering hotel-quality results but requiring higher energy and oil costs.
- Even scenting throughout large open spaces
- Ultra-quiet operation
Why we rate them this way
Aroma360 Diffuser — 8/10
Outperforms competitors on scent dispersal and runs nearly silent, but a limited scent library means it's only worth it if you love its specific scents.
What we liked: Outperforms Pura on raw scent dispersal, Fills 400 sq ft room quickly and runs nearly silent, Extremely easy setup and remote controls, Safe for pets, children, and furniture, Scent stays suspended longer than reed diffusers.
Worth knowing: Limited and unfamiliar scent library, Only runs one scent at a time, No smart scheduling (WiFi version unavailable at review time).
HVAC Diffusers — 7.5/10
HVAC diffusers beat candles and plug-ins for large open spaces, delivering hotel-quality results but requiring higher energy and oil costs.
What we liked: Even scenting throughout large open spaces, Ultra-quiet operation, Safe for pets, children, and furniture, Easy 30-minute installation, Programmable timers and presets.
Worth knowing: More expensive than traditional diffusers, Higher energy bills due to constant fan operation, Frequent oil bottle replacements, Unintuitive controls and interface.
Common questions
Is the Aroma360 Diffuser or the HVAC Diffusers better?
We rated the Aroma360 Diffuser 8/10 and the HVAC Diffusers 7.5/10, so we lean Aroma360 Diffuser — but it depends on what you want it for (see "which one is right for you" on the page).
How much do the Aroma360 Diffuser and HVAC Diffusers cost?
The Aroma360 Diffuser is listed at $149. We don't have a current price on file for the HVAC Diffusers — check the latest on its review page.
What's the difference between the Aroma360 Diffuser and the HVAC Diffusers?
Short version — Aroma360 Diffuser: Outperforms competitors on scent dispersal and runs nearly silent, but a limited scent library means it's only worth it if you love its specific scents. HVAC Diffusers: HVAC diffusers beat candles and plug-ins for large open spaces, delivering hotel-quality results but requiring higher energy and oil costs.