The length of time a fragrance lasts varies based on factors like:

• Type of diffuser
• Room size
• Environmental conditions
• Fragrance type
• Intensity settings

With a Pura 4™, a fragrance vial lasts about 3 weeks in a medium-sized room, diffusing 6–8 hours per day at medium intensity.

With a Pura Plus™, a fragrance vial lasts about 2 weeks in a large or open concept space under the same conditions.

Pura’s smart fragrance diffusers are designed with Puralast™ diffusion technology, which optimizes scenting based on the intended fill space of each diffuser. Because of this, fragrance vials may last for different lengths of time.

Pura Plus™ diffuses fragrances at a faster rate to fill larger, open-concept spaces efficiently.

Pura 4™ optimizes fragrance diffusion for medium-sized spaces, balancing scent strength and longevity.

Each Pura diffuser is engineered to maximize the fragrance experience in your space while ensuring efficient and effective scent diffusion.

Your Pura app will notify you when it’s time to replace your vials. You can also monitor usage based on your schedule and intensity settings to estimate when new vials will be needed.

The average user typically operates a Pura diffuser for around 6 to 8 hours per day at medium intensity with two vials plugged using schedules to alternate between two fragrances. 

Under these conditions, you can expect two scents to last:

6 weeks for a Pura 4™ in a medium-sized room

4 weeks for a Pura Plus™ in a large or open concept space

This duration can vary based on personal preferences, room size, and environmental conditions.