Q. Can it be charged via computer/cellphone?
A. briiv runs from 5V USB and can run from mains power, laptops or even a power bank if you wanted to keep wires to a minimum.

Q. How does humidity/temperature/amount of CO2 in the air affect its performance (assuming, say, a gathering of 7 people)?
A. None of these will affect briiv’s performance as it’s just capturing those harmful VOC’s and particles in the air. It will not reduce the CO2 level in the room as that’s a whole different filtration approach but I can point out that in a normal dwelling that is not sealed off (like an aircraft), CO2 build-up is not normally an issue.

Q. If the moss is dried, then it will catch larger particles in the air like dust and pollen, correct? Will it have to be washed? Can the moss be humid inside the briiv apparatus or does that compromise the function? A. Yes, the moss is designed to stop things like dust and pet dander and prevent them from clogging up the finer filters. Humidity won’t affect briiv: we’ve run it with live saturated moss under test conditions for a long time with no issues.


Q.What is your definition of "improve the air quality"? What measurements does that entail? How efficient is it if there's air circulation in the room due to windows or air currents? A. So this is the time it would take to fully cycle the air of the room through the filter in line with standard Clean Air Delivery Rate (CADR) tests. We’ve said ‘improve the air quality’ because this is the fairest way to describe it as every room will vary in the particulate count and we did not want to make a false claim that some others make. The improvement will be dependent on how high the initial room pollution is so if the room starts off with a very high particulate count in the unhealthy 150/100 ug/m3 count, for example, the reduction will be a lot more than a room that already has a very low particulate count of, for example, 2.5 ug/m3.

This effect is normal amongst all air filters and is caused by the gaseous nature of the air and how airborne particulate moves in the space of a room. You mention air currents: if these are generated by another fan or people moving around then these are beneficial to the filtration efficiency, but, as with all air filters, it’s not recommended you use briiv whilst windows are open as you will in essence be trying to clean the outside air, which briiv would do but I think you’d agree this is a big task.


Q. Does briiv use an Ionizer or generate Ozone?
A. briiv doesn’t use an ionizer and doesn’t generate ozone.


Q. How loud is briiv?
 briiv is rated at around 45dB, the equivalent of a quiet office. 


Q. How do you clean briiv?
If you need to clean your briiv, unplug it from the power source and use a household glass cleaner to clean the glass if you deem it necessary. You won’t need to clean any other part of briiv.  

Q. How energy efficient is briiv?
A. briiv is low-powered via USB, using just 5V to operate. Over the course of a year, the estimated electricity spend is approximately £2/$3

Q. What is your sustainability policy?
A. briiv uses as much recycled and sustainable material as is possible with the current scales of industry available to us. Over time, we hope to see more factories and suppliers using sustainable materials so that we can eventually get briiv to its 100% sustainable goal.

Q. What is your warranty policy like?
A. We offer a one year guarantee against defects and faults with briiv. We also offer a 30 day money back guarantee if you change your mind (minus shipping and handling), provided briiv is in the same condition as when it was taken out of the box and in its original packaging.

Q. Can I use briiv without WiFi? A. Sure but you won’t be able to control briiv via the app. Briiv features touch buttons so you don’t have to have it connected to the internet in order for it to work.


Q. How long do filters last?
A. The filters are built to last up to six months, with the wool component replaced every three months. Don’t worry, each Quad Core filter will have two wool filters so you can swap it out after three months.

Q. What size room will briiv cover?
A. briiv will cycle the air in a 6m x 6m room in one hour.

Q. What are the exact details of the testing carried out on the filter

A. So for the more intrepid, outlined below are the tests carried out:

1. Particle Filtration Efficiency (PFE) according to ASTM F2299

The PFE test evaluates the filtration efficiency of filter media by challenging the filter with a known dosage and size of latex particles. The latex particles generated are in the sub-micron size range and can simulate influenza viruses that are 0.1 micrometres in diameter.

Also referred to as Latex Particle Challenge, this test is required for ASTM F2100 and is performed according to the ASTM F2100 and follows the basic principle of ASTM F2299.

Independent Lab: Nelson Labs, USA

Results:  Filter captured 99.85% of 0.1um latex particles.

2. Bacterial Filtration Efficiency (BFE) according to ASTM F2101

The BFE test evaluates the filtration efficiency of filter media by challenging the filter with a known dosage of the microbe, Staphylococcus aureus. The BFE test is performed on filtration materials and devices that are usually designed to provide protection against biological aerosols, such as face masks, surgical gowns, caps and air filters.

This test is used for FDA 510(k) submissions for surgical masks, is required by ASTM F2100 and EN 14683, and complies with ASTM F2101 and EN14683.

Independent Lab: Nelson Labs, USA

Results: Filter removed 99.99902% of the bacteria.

3. Cytotoxicity

The Cytotoxicity test measures the toxic quality to cells, and is designed to demonstrate the cytotoxic effects of potential leachables from a product/material. This test is usually performed on all medical devices with patient contact, raw materials, and devices undergoing a cleaning validation or residual manufacturing.

The Cytotoxicity/MEM/Agar Overlay meets AAMI/ANSI/ISO 10993-5 requirements as well as USP <87> requirements.

Independent Lab: Nelson Labs, USA

Results: Test gave a pass. This means the filter, is considered non-cytotoxic.