CF4000 FAQ

CF4000 FAQ


Qn 1.    With Zero2.5 Air Ioniser’s Patented Proprietary NAIs Purification Technology, it is claimed to be able to produce NAIs equivalent to 1,000,000 trees to clean the air. Is there any source that we can cite?

Reply:   The 1 Million Trees statement is merely a comparative benchmark based on the NAIs emission (NAIs per cubic-cm) of our product against the average emission produced by a tree. On average, a tree generates less than 100 NAIs. Our ioniser was measured to exceed more than 2 Million NAIs using an Ions counter. The objective is to deliver a message on the significance of our product’s performance in emitting much more NAIs than a live tree does. Putting this in another perspective - a forest as a whole is only capable of generating 2000 NAIs.  2 Million NAIs is equivalent to 1000 forest in effect.

Qn 2.    Can Zero2.5 natural fibre Air Ionisers remove COVID-19 from the air?

Reply:   Yes. Our natural fibre Air Ionisers have undergone an efficacy test of 1μm aerosol particles (which is a proxy of the COVID-19 virus). The efficacy of virus removal is being independently tested by Research Institutes and peer-reviewed in the OSF Journal. The full report can be found at the link here:

Qn 3.    Is there any scientific literature explaining the benefits of NAIs?

Reply:   We have compiled a list of scientific journal articles documenting the benefits the NAIs can bring to a person. Download information at the link below:

Qn 4.    Can Zero2.5 natural fibre Air Ionisers remove pollen from the air? This question is particularly relevant for countries that experience pollen season in Spring.

 Reply:   Negative Air Ions (“NAIs”) remove particles from the air that cause allergies, such as: pollen, dust and mold. There are many types of pollen allergies and the particle sizes of pollen typically range from 10 to 150 microns(μm). Our natural fibre Air Ionisers are capable of removing particulate matter up to 10μm (i.e., PM2.5 and PM10).


Qn 5.    Which part of the coconut is used to extract the sustainable natural fibre that goes into producing Zero2.5 Air Ionisers? From which country is the coconut natural fibre sourced from?

Reply:   The sustainable natural fibre is extracted from the outer husk of the coconut and the material is sourced directly from various coconut farms in Indonesia.   

Qn 6.    When will the Natural Fibre Coco Ball degenerate?

Reply:   Based on our Supplier's feedback, the coconut fibre can last for a period up to 3 years. As mentioned earlier, we provide 1-year warranty for the natural fibre coco ball and electronic parts (including control box and adapters). This is based on the condition that the products are operated within the limits set forth in the respective products’ user guides.


Qn 7.    Must the Zero2.5 Air Ionisers be connected to the power socket and turned on all the time or does it run on rechargeable batteries?

Reply:   Zero2.5 Air Ionisers will only actively emit NAIs when they are turned on (i.e., connected to power source). They do not run on rechargeable batteries. 

Qn 8.    Zero2.5 natural fibre Air Ionisers are deemed to be 5x more energy efficient than Air Purifiers (i.e., uses less than 3W of power). Is there any source to support this statement?

Reply:   The power consumption of our natural fibre Air Ionisers are tested and measured to consume less than 3W of power. The average power consumption for a mid-range air purifier is more than 15W. For example, the rated power for Mi Air Purifier 3H is 38W.


Qn 9.    How do I know if my newly installed natural fibre Air Ioniser is working properly?

Reply:   There is a green LED light indicator that illuminates when the device is powered on. You can also use an Ion counter to measure the presence and concentration of NAIs when the device is turned on.


Qn 10.  How long can Zero2.5 Air Ionisers emit NAIs (i.e., 10 years, 5 years or forever)?

Reply:   We offer a 1-year warranty for our products (including the coco ball). This period of warranty is the standard practice extended in the market for consumer electronic products. We recommend that the Air ioniser be turned on only when it is in use, just like any electronic product. Do turn off the power when the Air Ioniser is not in use.


Qn 11.  How do you clean or perform maintenance on the natural fibre coco ball (i.e.,  accumulation of dust).

Reply:   The natural fibre coco ball is maintenance-free. However, it is a good practice to carry out simple cleaning and maintenance once or twice a month. We recommend using a wet tissue or towel to wrap around the coco ball for 10 minutes to absorb dirt(if any). This procedure will also help to moisturise the natural fibre of the coco ball which also prolongs its air cleaning efficiency.

Qn 12. How often should the natural fibre coco ball be replaced? Are spare replacement coco balls sold? Understand you have earlier mentioned 3 years. Will this be correct?

Reply:   The natural fibre coco ball should last for at least a year on the condition that the product is used within the limits set forth in the product’s user guide or under normal usage. The estimated lifespan of a natural fibre coco ball is 3 years. If a replacement coco ball is needed, it can be purchased online.

Qn 13.  Why does my wall display some black marks after a couple of weeks when I place the AirMarble Ioniser CF4000 close by?

Reply:   Be assured that our ioniser is a low powered device and is absolutely safe to use. The black wall marks are not burnt marks but an indication that the air quality in that environment is less than ideal (i.e., black marks are due to an accumulation of PM2.5, dust, smoke, etc). The black marks also demonstrate the strength of our ioniser in subsiding the air pollutants to the ground or nearby surfaces. This happens if the ioniser is placed closer to the wall surface. It is always a good practice that the wall surface nearer to the ioniser be cleaned regularly depending on how dusty is the environment. To put things in perspective, such pollutants in the air are likely to end up in your lungs, if it were not for the air cleaning efficacy of our ionisers. 


Qn 14.  Concerns with static charges

Reply:   Please be assured that our natural fibre Air Ionisers are classified as low-powered devices and are operated well below the recommended safety limit. Our Air Ionisers rely on the air ionisation process to deliver clean air. However, this air ionisation process may generate some static onto nearby objects. This is normal and regarded safe. Given that our devices deliver high cleaning efficacy with its patented 360-degree natural fibre coco ball, touching any part of the coco ball could likely transfer static charges to a person. While it is certainly safe to touch, by continuing to touch the ball can result in a build-up of static charges in a person. Therefore, if another person B nearby comes into physical contact and touches person A who has a build-up of static charges in him, Person B will experience a minor static shock. As such, do minimise your physical interaction with the natural fibre coco ball. 

The permanent fixture of metal surfaces and objects in close proximity with the Air Ioniser are usually more sensitive to a build-up of static charges over a period of time. It is recommended to keep the Air Ioniser at least 1-metre away from electronic devices, such as: Laptops, computer monitors, TVs, and AV sound systems as indicated in our user manual.