FAQ - gako UV-C air sterilizer

Is it necessary to install the gako UV-C air sterilizer?

No, the gako UV-C air sterilizer is operated after the established Plug & Play principle. The device is connected to a power source (220 V) and then switched on and off using the illuminated switch.

When should the gako UV-C air sterilizer be switched on?

The user should have a disinfection or cleaning plan. Depending on the plan, the gako UV-C air sterilizer can be operated continuously, in cycles or overnight. This can be done both in an empty room and in a room with people present.

We recommend 1 hour before and 1 hour after. This ensures that the virus load before and after the use of the room is reduced to a minimum.

How loud is the gako UV-C air sterilizer?

The maximum noise level is 55 dB, which is similar to a conventional dehumidifier.

For which room size is the gako UV-C air sterilizer suitable?

The air circulation per hour is at least 800m3. According to the studies by Professor Kähler from the Military University in Munich, the air in a room should be cleaned 6 times an hour. Following this recommendation, the air volume of a room in which the gako UV-C air sterilizer is to be used corresponds to approx. 135m3. The floor space of the room depends on further factors: the height of the room and any built-in components such as wall cupboards. In general, the floor space should be between 50 and 60m2.

In rooms that are larger than 60m2, several devices can be used without any problems. These are then distributed accordingly in the room.

How long does it take to clean the room?

The gako UV-C air sterilizer continuously removes viruses, bacteria, germs and mold spores from the air flowing through the UVC lamps. The duration can vary depending on the disinfection or cleaning plan, taking into account the contamination load, the period of use and the size of the room. It is recommended to switch on the gako UV-C air sterilizer approx. 60 minutes before using the room in order to reduce the existing contamination load to a minimum before use. We also recommend a follow-up time of approx. 60 minutes after the use of the room in order to reduce to a minimum the contamination of surfaces, which inevitably results from suspending the air movement and the settling of viruses and bacteria.

How should the gako UV-C air sterilizer be operated if the room is larger?

The gako UV-C air sterilizer is designed for the complete cleaning of rooms with a maximum air volume of 135m3. The cleaning of larger rooms must be assessed individually, taking into account how large they are and which additional parameters are available. For example, if you have a 150m3 room with little use by people, a longer operating time and/or repositioning of the device during use within the room may be sufficient. More than one device should be used depending on the size of the room, the number of people or the level of contamination.

Can the gako UV-C air sterilizer be used in a clean room?

Yes, the device can also be used in a clean room.

Does the use of the gako UV-C air sterilizer guarantee disinfection of the room?

The basics of the scientific literature confirm that UV-C light with a wavelength of 253.7 nm can effectively kill viruses (including COVID-19), bacteria, germs and mold spores in seconds wherever it is used.

In addition, various tests were carried out with the device and a kill rate of Staphylococcus albus in the air of an artificially contaminated aerosol chamber of more than 99.90% was achieved within one hour. In another test, the device was able to disinfect more than 90% of the bacteria in the air.

The test results meet the requirements of the Technical Disinfection Specifications, Edition 2002 of the Chinese Ministry of Health (Shandong Provincial Center for Disease Control and Prevention Inspection Report Acceptance).

In addition, the effectiveness of UV-C lamps for disinfecting and inactivating a large number of microorganisms such as viruses, bacteria and protozoa has already been proven in many scientific sources. See also gako Explanatory and the studies on SARS-COV-2 which can be found in the UV-C section on our website uvc-sterilizer.shop

Is it dangerous for people to be near the gako UV-C air sterilizer?

The UV-C lamps are located in the device so that there is no direct eye or skin contact. It is therefore a so-called “contained UV-C light”. The exit of the UV-C radiation is ≤5 µW/cm2 and is therefore safe for use in areas where people are present. In addition, only ozone-free halogen lamps are used. Additional pollution caused by an increase in ozone levels in the room air is thus avoided.

Are there any security recommendations?

The gako UV-C air sterilizer should be set up in a safe and dry place. The air ducts (inlets and outlets) must not be blocked. Opening the device is reserved for specialists and should only be carried out by trained personnel for service or maintenance purposes. In addition, no liquids should be spilled into the device.

What kind of service/maintenance is required?

Electronic components in the device must be replaced every 5 years due to UV-C corrosion. The UV-C lamps must be replaced regularly - see also the service life of the gako UV-C air sterilizer.

How long is the service life of the gako UV-C air sterilizer?

Each UV-C lamp has a service life of at least 5,000 operating hours. After a cumulative operating time of 5,000 hours, all the UV-C lamps in the device (5 pieces) must be replaced. The exchange must be carried out by a specialist - gako offers a corresponding service including collection, replacement of the UV-C lamps, maintenance and return transport. The operating time will be calculated according to the hygiene/usage plan specified for the device.

Where can replacement UV-C lamps for the device be obtained?

gako offers a corresponding service including collection, replacement lamps, maintenance and return transport.

How many UV-C lamps are used in the gako UV-C air sterilizer?

There are 5 UV-C lamps built into the device.

Does the device use a HEPA filter?

The use of a HEPA filter for this type of device is not necessary. The device uses ozone-free UV-C lamps for air sterilization. This means that the regular cleaning and replacement of contaminated filters is not applicable for the gako UV-C air sterilizer.

Does the gako UV-C air sterilizer use a carbon filter?

The use of a carbon filter for this type of device is not necessary. The device uses ozone-free UV-C lamps for air sterilization. This means that the regular cleaning and replacement of contaminated filters is not applicable for the gako UV-C air sterilizer.

Does the gako UV-C air sterilizer use a pre-filter?

The use of a pre-filter for this type of device is not necessary. The device uses ozone-free UV-C lamps for air sterilization. This means that the regular cleaning and replacement of contaminated filters is not applicable for the gako UV-C air sterilizer.

What should I look out for when comparing the gako UV-C air sterilizer with products from other competitors?

  • Air circulation volume (>800m3/h) - this value is crucial to ensure a reduction in the contamination load in a room - see also study by Professor Kähler of the Military University of Munich. The air in a room should be collected by an air purifier at least 6 times per hour - example product from a competitor with 135m3/h corresponds with a factor of 6 to a maximum room air volume of 22.5m3 and thus with a ceiling height of 2.5m a floor space of 9m2 - that's just 2.5x3.6m;
  • 5 ozone-free UV-C halogen lamps with 155 µW/cm2 each - Current scientific studies from Boston, Milan and Tübingen show that fewer than 20 µW/cm2 are sufficient to inactivate SARS-COV-2 in seconds.
  • Scientific test results that were carried out with the gako UV-C air sterilizer are available

Does the gako UV-C air sterilizer have a CE mark?

Yes, the gako UV-C air sterilizer complies with both the standards and the directives that the European Community requires for devices of this type. This has been checked and confirmed by recognized independent institutes. Accordingly the gako UV-C air sterilizer is CE marked and marketable for the EU.