When should I use the different speeds?

Briiv has four speed levels and two distinct modes to utilise: 

• Manual mode - you can select the output by pressing + and - to raise and lower the air delivery rate
• 1-Hour Mode - the unit will automatically be set on maximum power (level 4) and turn off after one hour.

If your Briiv is at maximum power it will be louder than average so it might be inconvenient to run Level 4 if you're attempting to do something sound-sensitive in the same room. Briiv runs from a low-energy 5v USB connection, which means we can pack an impressive amount of power into such a compact unit, and the levels can vary depending on what's appropriate for your own usage and needs. 

As a guide, this is how we'd recommend using the different levels:

Level 4 - Maximum power, set and forget. For when you're in another room or out of the home and want to set the '1-Hour Mode' for purified air when you return. 

Level 3 - High power, for when doing something intensive like cooking a meal or using cleaning products and you feel a little extra speed is needed.

Level 2 - Medium power, ideal for running in the background. The Briiv will emit a low hum, but is perfectly usable if you are sleeping nearby or watching TV in the same room.

Level 1 - Low power, ideal for when Briiv is by you all day, helping clear the air around you and keep you calm and focused.

You can see the different speed levels in action here.