Pura 4 Smart Home Fragrance Diffuser
- Holds 2 scent refills, switch in the app
- 120 hours runtime
- Medium to large rooms
- Schedules, timers and intensity via Pura app
- LED light, glass and plastic build
- 5.6 ounces, 3.75 x 4.75 x 4.75 inches
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
An app-run plug-in diffuser that holds two scents, with schedules and intensity control for one main room. Refills are sold separately, so the starting kit is only the device.
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ASIN: B0FWT27J86Category: Home Fragrance Diffusers
Overview
Pura makes this smart diffuser to scent a room from an outlet with vial refills. The app sets schedules, intensity and which of the two loaded scents runs, and the unit reads room temperature to spread fragrance evenly.
Two refills loaded at once and remote control from a phone make it simple to change scents by time of day. Every refill is a separate purchase and the device only works with Pura's own vials, so ongoing use ties you to one brand.
Who it's for
People who like a home that smells the same every evening without touching a device get app schedules and two scent slots. Those who blend their own oils need an open oil diffuser instead.
Pros and cons
- Two scents loaded at once
- App schedules and timers
- Adjustable scent intensity
- Temperature aware diffusion
- Refills sold separately
- Proprietary Pura vials only
- Warranty terms not listed
Performance notes
Scent strength depends on the intensity setting and how long each vial runs, both set in the app. The unit adjusts output to room temperature, which helps even spread across a medium or large room. Larger open floors will dilute the effect.
Specifications
| Brand | Pura |
|---|---|
| Dimensions & fit | |
| Item Dimensions L X W X H | 3.75 x 4.75 x 4.75 inches |
| Item weight | 5.6 ounces |
| Capacity & performance | |
| Capacity | 2 scent refills |
| Construction & materials | |
| Color | White |
| Material Type | Glass, plastic |
| Other details | |
| Runtime | 120 hours |
| Light Source | LED light |
| Control Type | Pura app, schedules and timers |
| Recommended Uses For Product | Home, nursery, office, vehicle |
| Coverage | Medium to large room |
| Additional Features | Long Lasting Aroma |
Frequently asked questions
How do I adjust the Pura 4 diffuser scent strength?
Intensity, schedules, timers and which scent runs are all set in the Pura app.
Does the Pura 4 come with fragrance refills?
No. Refills are sold separately; the unit holds two scent refills at once.
How big a room can the Pura 4 scent?
The listing says medium to large rooms.
Can I put essential oil in the Pura 4?
The listing only describes Pura smart vial refills, so plan on using those.