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FAQ  |  DUV Technology

01. Why can UV kill bacteria?

UV-C can penetrate the membrane and nucleus of microbial cells to directly destroy their DNA and RNA structures in order to block protein formation and thereby kill microbes or make them unable to reproduce. UV radiation is the only way to kill all bacteria and viruses.

02. What are the differences between killing bacteria with UV radiation and alcohol?

Alcohol is a common disinfectant, but it is not effective to all bacteria. Many experts remind people that alcohol cannot kill enterovirus. UV sterilization is fast, thorough and easy to operate, contains no contamination, and requires only a low use and maintenance expense. It can kill almost all bacteria, viruses, parasites, pathogens, algae, etc. without causing secondary pollution or toxic substances. For the sterilization objects, UV does not cause corrosion, contamination, and residues to bring you a safe, energy-saving, and no-pollution healthy lifestyle and reduce environmental loads.

03. What are the differences between killing bateria with UV radiation and bleach?

Bleach primarily consists of sodium hypochlorite to cause protein denaturation to effectively kill bacteria, fungi and viruses. However, it is irritating to the human mucous membrane, skin, and respiratory track. Apart from being decomposed by heat and light, bleach will easily chemically react with other substances. Improper use of bleach will affect the disinfection performance, and overuse or overdose of bleach will contaminate the environment and damage the ecosystem. More importantly, bleach overuse or overdose is hazardous to health. A 2017 research found that long-term exposure (use) to bleach can cause lung damage, particularly increasing the risk of chronic obstructive pneumonia disease (COPD). Frequent use of bleach in household cleaning can increase the risk of cold in children by 20% and tonsillitis by 35%.

04. What are the differences between killing baterias with chlorine disinfection and UV radiation?

Chlorine disinfection cannot eradicate chlorine-resistant bacteria, such as Cryptosporidium. Compared to chlorine disinfection and ozone disinfection, UV sterilization is fast, thorough and easy to operate, contains no contamination and requires only a low use and maintenance expense. It can kill almost all bacteria, viruses, parasites, pathogens, algae, etc. without causing secondary pollution or toxic substances. For the sterilization objects, UV does not cause corrosion, contamination, and residues to bring you a safe, energy-saving, and no-pollution healthy lifestyle and reduce environmental loads.

05. Can any type of UV kill bacteria?

No. The sun emits three different types of UV radiation by wavelength: UV-A, UV-B, and UV-C, where UV-C (λ = 280-200nm) is the most suitable for sterilization. Although the wavelength of UVB is λ = 320-280nm, its sterilization effect is no good. Therefore, UVB is often used for amino acid detection in surface solidification, phototherapy, and hemodialysis. UVA (λ = 380 - 320nm) is often used for counterfeit banknote detection.

06. What are the differences between UV-C LEDs and CCFL/T5 UV lamps?

Compared to CCFL/T5 UV lamps, UV-C LEDs are characterized by high luminous efficacy, low thermal emission, low power consumption, long life, low breakability, mercury-free, low ozone emission, and single wavelength. While most CCFL/T5 UV lamps are gas-discharge lamps illuminating with gaseous mercury. They are characterized by low luminous efficacy, high power consumption, short life, high breakability, and the risk of mercury contamination/poisoning. For these reasons, the UN launched in 2020 the Minamata Convention on Mercury to ban in 2020 the production, import, and export of fluorescent lamps for general lighting purposes containing over 5mg of mercury.

07. Why does Brinouva insist on banning CCFL/T5 UV lamps?

Most CCFL/T5 UV lamps are gas-discharge lamps illuminating with gaseous mercury. They are characterized by low luminous efficacy, high power consumption, short life, high breakability, and the risk of mercury contamination/poisoning. For these reasons, the UN launched in 2020 the Minamata Convention on Mercury to ban in 2020 the production, import, and export of fluorescent lamps for general lighting purposes containing over 5mg of mercury. Therefore, Brinouva chooses to use the eco-friendly and durable UV-C LED chips to ensure safety!

08. What bacteria can UV kill?

UV can kill almost all kinds of bacteria. However, due to the characteristics of different bacteria, the UV radiation time may vary.

09. How to choose UV LEDs?

As the application varies, the choice of UV LEDs differs. Currently, as the best price of UV LEDs has not yet come, high-power LEDs are for industrial use, while UV LEDs for domestic use usually have lower power. Brinouva equips products with LEDs with the best power and longest life, which are ideal for both industrial and domestic uses.

10. Can people expose to UV?

In general use, UV lights are not harmful to the human body in short period of time. However, prolonged UV exposure is bad to human skin. More importantly, UV radiation on human eyes is strictly prohibited. This can cause conjunctivitis.

11. What is the life of NKFG UV LEDs?

With a current of 350mA at LED lumen depreciation of 70%, the average light of NKFG LEDs is over 10,000 hours. At a lower current, the life can increase to 30,000-40,000 hours.

Service Track

Please call +886-2-2712-2211 ext. 7349/7345 for enquires.

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