AirFanta 4Lite

In order to receive the best protection, the manufacturer recommends setting the device to the lowest speed setting and positioning your face within 30 cm from the air outlet. Correctly aligning your face to the air outlet within the distance mentioned is important.

The device could also be used at medium (40 cm away from the device) or high (50 cm away from the device), however the protection will be reduced due to increased velocity and entrainment of unfiltered particles from the surrounding air.

The manufacturer also recommends using the device as an additional layer of protection for users protecting themselves from COVID-19, so it should be used together with a fit-tested N95 respirator whenever possible.

10 seconds after powering on the device.

Yes. Testing from an independent laboratory showed that AirFanta 4Lite (standard: GB/T 34012-2017, test report: KY202302335) removed over 99.5% of the H1N1 influenza virus.

As for SARS-Cov2 (COVID-19), based on findings from multiple studies, there is strong evidence that the virus resides in exhaled aerosols in the 1 to 5 micron size range. AirFanta’s high efficiency filters can remove 99.4% to 100% of viral aerosols in this range in a single pass.

Our findings from both H1N1 and SARS-Cov2 (COVID-19) should also apply to other kinds of airborne viruses as well, as the size of viral aerosols exhaled from an infectious person doesn’t change much regardless of the type of virus.

Yes, it can filter allergens, so it should be able to reduce allergy symptoms when the device is used according to the instructions.

A fit testing advocate performed a quantitative fit test on the AirFanta 4Lite with an ambient particle counting device. In the test, the AirFanta 4Lite had a fit factor of 7.4 (equivalent to 85.92% protection) when set at the recommended speed, assuming the user correctly positioned their face towards the center of the air outlet.

Studies that conducted quantitative fit testing on face masks (worn by common laymen without any modifications) found that they typically have a fit factor between 1 and 2. Assuming the average fit factor is 1.5, that is equivalent to 33.4% protection.

More information can be found here.

Yes. The device does not emit ozone or ions, so it can be safely used on an airplane.

Up to 10 hours. We recommend connecting the USB-C charging cable to a fast-charging 20 W AC adapter (sold separately).

Yes.

You should replace the filter every 150 to 200 hours of use. The filter lifespan largely depends on environmental conditions. For example, you may need to replace it more often when using it under environmental conditions such as haze or wildfire smoke. Visually inspect the condition of the filter (if it looks black or appears to be full of dust, it should be replaced!) if you are unsure. Filtration efficiency and overall protection will be reduced when a dirty filter is not replaced.

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No. AirFanta 4Lite is meant to be a device to personally protect an individual. It will not be effective at cleaning the air in the room. You should use a room air purifier with a high CADR (clean air delivery rate), such as AirFanta 3Pro, instead.

Yes, but you should use it away from the room air purifier. This is because the turbulent airflow from the room air purifier could interfere with the laminar airflow of the device and reduce protection.

The manufacturer recommends using AirFanta 4Lite away from wind sources, such as ceiling fans, electric fans, air conditioners, room air purifiers, and outdoor wind. This is because the turbulent airflow from wind sources could interfere with the laminar airflow of the device and reduce protection.

Yes. Local warranty lasting 1 year is included with this product. You can also purchase extended warranty for a peace of mind.

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