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Кінцевий посібник покупця щодо придбання ультрафіолетових ламп

Час: 2020-07-20

Сьогодні УФ-світло вискакує як відповідь на вбивство вірусів та бактерій. Однак якщо нам не вистачить достатньо знань про УФ-світло, ризиків буде більше, ніж користі.


Це може бути дуже непросто, оскільки на ринку так багато УФ-ламп, і всі вони мають різні особливості та описи.


Don't be overwhelmed! We understand that UV Lamp is an investment for you business so you want to be sure you are choosing the matching one to fulfill your need s and budget.


Тому ми поставили вам повний посібник із придбання ультрафіолетових ламп, який допоможе вам прийняти зважене рішення.


 Частина перша: ультрафіолетове світло


Q1 What is ultraviolet light?


Sunlight is a mixture of light energy at different wavelengths. The wavelengths range from 380 nanometers (nm) to 780 nanometers (nm) are called visible light, while those beyond the range of wavelength are called invisible light.

 

Ultraviolet light is a kind of electromagnetic radiation with a wavelength between 10 nanometers and 400 nanometers, which is shorter than visible light, but longer than X-rays, and cannot be detected by the human eye.

 

Although ultraviolet light is known for its disinfection function, for example, it can kill various microorganisms, but the actual efficacy of ultraviolet light depends on the wavelength range.


Q2 What are the differetn types of ultraviolet light?


UV-A, 320nm to 400 nm. It makes up the majority of UV reaching the Earth and can damage our skin.

 

UV-B, 280nm to 320nm. It can treat skin diseases, but too much exposure will cause sunburn and even skin cancer. Only less than 2% of UVB can reach the earth.

 

UV-C, 200nm to 280nm. It is particularly good at sterilizing but te penetration ability is very weak. Before reaching the ground, all UVC will be absorbed by ozone in the atmosphere.

 

In summary, the shorter the wavelength, the stronger the energy, but the weaker the penetration, the faster the disappearance.


Q3 Why you should choose ultraviolet light?


There are several main advantages of using ultraviolet light for disinfection:


  • Ефективний метод дезінфекції

Ultraviolet light is a fast and immediate type of disinfection where results can be seen within few minutes.


  • Ніяких хімікатів не потрібно

No chemical residue is left behind after the application of ultraviolet light, without life-threatening chemicals.


  • Немає небезпечних побічних продуктів

Ultraviolet light disinfection is a chemical-free activity which adds up nothing other than ultraviolet light, thus no by-product is formed.


  • Нетоксичний

The ultraviolet light disinfection is a physical one and secure for use on food. 


Q4 What are the precautions when using ultraviolet light?


Humans are at risk if they are exposed to ultraviolet light even for a short time. The intensity of harm depends upon the exposure time, the intensity and wavelength of ultraviolet light. The following are guidelines:


(1) Use filters, lenses, eyewear, and gloves

(2) використання closed beam paths of ultraviolet light

(3) Use a cover to close the beam when the ultraviolet light source is not in use

(4) Never look straight at the ultraviolet light

(5) Уникайте відвідування ділянок, де використовується ультрафіолетове світло

(6) Захистіть своє skins by covering them and decrease the exposure time


Related Knowledge: Чому для стерилізації використовується ультрафіолетове світло?


Q5 What are the features of UVA sterilization?


With the longer wavelength, UV-A has weaker energy. Therefore, it can't kill virues and bacteria alone.

 

Тим не менш, УФ-А має більш високий коефіцієнт корисної дії (поточна фотонна-поточна ефективність), ніж інші довжини світлових хвиль, і може досягти активності фотокаталізатора при контакті з TiO2.

 

Through the photocatalyst, an oxidation-reduction chemical reaction occurs. All carbon-based organisms, including bacteria, viruses, smoke, formaldehyde, pollen, mites, etc, will be disintegrated into H2O & CO2.


Q6 What are the features of UVB sterilization?


UV-B light can be filtered and can not propagate through glass materials.

 

People suffering from a shortage of Vitamin D and high blood pressure can exposure to the UV-B to lower their blood pressure.

 

Сприятливі особливості УФ-В-хвиль можуть бути використані для захисту людини від зараження та лікування кількох шкірних проблем.

 

However, It has neither strong energy nor strong penetrating ability, so it has little help in sterilization.


Q7 What are the features of UVC sterilization?


UVC has a number of benefits for human beings. It isolates the DNA of a germ that disallows the germ to breed or propagate and minimize its attacks on the living bodies.

 

However, UV-C can not discriminate between the human body and viruses, bacteria, and will cause harm to the human body.

 

Meanwhile, UV-C has the tendency of electromagnetic waves to travel in a straight line. Combined with weak penetration ability, the sterilization conditions for UV-C are strict, including small & confined space, long enough operating time, working without the presence of the human.


Пов’язані знанняЯке УФ світло найкраще?


Q8 How does UVC light kill viruses & bacteria?


UVC works by destroying the DNA or RNA of the bacteria & viruses, without the use of chemicals, making them inactive and unable to reproduce.

 

Since the lifespan of single bacteria&viruses is very short, once they lose the reproduce ability, it means death. So the purpose of sterilization has been achieved.

 

Scientific research found that UVC can use very little time to finish the disinfection process and make most microbes reduction up to 99.99%.

 

Based on this information, UVC lights are believed to be effective at killing viruses & bacteria. 


Q9 Can we be disinfected by sunshine?


Вам може бути цікаво, якщо ми стоїмо під сонячним світлом, що містить УВК, чи можемо ми продезінфікувати його?

 

На жаль, відповідь - ні. Хоча здатність до стерилізації ультрафіолетового світла надзвичайно сильна, здатність до проникнення до предметів (включаючи повітря) надзвичайно слабка. Перш ніж дістатись до землі, всі УФК-вогні будуть відфільтровані озоном в атмосфері.

 

Ось чому для досягнення дезінфекції нам потрібно використовувати носій, подібний до ультрафіолетових дезінфекційних ламп.


Q10 Can UVC light kill all viruses immediately?


Please pay attention to the fact that the vitality of different viruses and bacteria are different. Some bacteria&viruses may be injured once they are exposed to UVC, while others are not.

 

Якщо ультрафіолетова доза недостатня, деякі віруси лише тимчасово втрачають активність, а потім повільно відновлюють власну структуру.

 

At present, there are no specific figures to show how much UV dose is needed to kill different viruses & bacteria.

 

But one thing is certain, that is, the sterilization effect is a combination of ultraviolet energy and irradiation time.

 

Пов’язані знання: Can UVC light kill the viruses and bacteria?


Q11 Is Far-UVC light (222nm) safe?


Більше вчених довели, що UVA, UVB і UVC можуть завдати шкоди шкірі та очам людини і навіть призвести до раку.

 

The latest experiment shows that 222nm Far-UVC may be safe for human health. Because its penetration is very weak and can only reach the surface skin. However:

 

1. The research on 222nm Far-UVC is still in the experimental stage and far away from commercial application. There is no clinical trial data to prove its safety.

 

2. UVC LED chip with 222nm Far-UVC is still in the stage of small-batch production and we cannot use this chip for mass production.

 

3. The cost of UVC LED chip with 222nm Far-UVC is too high to be affordable.

  

Пов’язані знанняIs Far-UVC light (222 nm) efficient and safe?

 


 ЧАСТИНА друга: Ультрафіолетові лампи


Q12 What are the main UV lamps on the market?


On the market, there are four main products taking UV as core competence:

 

UV Mercury Lamp, popular for the low cost and high power but not suitable for family use. Because it was harmful for human health.

 

UVC Sterilizing Wand, has only a psychological comfort effect. Because the bacteria will only temporarily lose activity, and then slowly repair structure with insufficient UV dose.

 

UVC Sterilization Box, is a more suitable application due to the confined space. But it can only sterilize small objects.

 

UV Air Disinfection Solutions can meet all conditions and is a huge market ignored by everyone.


Related knowledge: Чому більшість ультрафіолетових ламп на ринку неефективні?


Q13 What are the advantages of UV mercury lamp?


UV Mercury lamps are more energy-efficient than incandescent and most fluorescent lights. The other advantages are high intensity, clear light output.

 

З цих причин їх використовують для накриття освітлення великих площ, наприклад, на фабриках, складах та спортивних аренах, а також для вуличних ліхтарів.

 

UV mercury lamps are economical and largely admired by the general public. They are used commonly in the industrial and commercial levels and are considered as one of the most reliable forms of lighting.


Q14 What are the disadvantages of UV mercury lamp?


Ультрафіолетова ртутна лампа небезпечна для людей, оскільки:

 

  • Contain mercury

 Mercury has a wide range of acute health effects, including harm to the nervous system, immune system, and gums. According to the Minamata Convention on Mercury, China will not produce and sell such lamps since 2021.

 

  • Induce Ozone

185nm ultraviolet light of mercury lamps can change O2 in the outside air to O3, which will result in dizziness and nausea affect health.

 

  • Waste energy

UV mercury lamp needs a long start-up time.

 

The better applications for UV Mercury Lamps are industry levels, such as sports ground and factories.

 

Пов’язані знанняЧи варто купувати УФ-ртутну лампу?


Q15 What are the advantages of UV sterilizing wand?


The stuff we use every day like the computer, bed, desks, and kitchenware is a harbor for germs cause the surfaces are touched and re-touched by hundreds of people.

 

Luckily, UV sterilizing wand can clean surfaces such as sofas, beds, bathtubs, towels, cushions, carpets, and keyboards and reduce surrounding bacteria.

 

The outstanding advantage is light and portable, which can be easily placed in a handbag, backpack, or suitcase. No matter where you are, you can meet the sterilization requirement at any time.


Q16 What are the disadvantages of UV sterilizing wand?


At first, the amount of UVC light required for sterilization is around 40 millijoules per square centimeter, and it is almost impossible to get in a hand-held little device.

 

Secondly, UVC does not work well in corners and crevices because it is the spectrum of visible light, and if light cannot enter, it will not produce the same effect.

 

Thirdly, UV sterilizing wand requires someone to hold it. If the device can destroy the virus, then it can also harm you.

 

In summary, even if the UV sterilizing wand is functional, their disadvantages outweigh their use. 


Пов’язані знанняShould I buy UV sterilizing wand?


Q17 What are the advantages of UV sterilization box?


UVC Sterilization Box is a more suitable application. Because it's the most cost-effective sterilization solution.

 

Виходячи з високої вартості світлодіодного УФК та ​​швидкої швидкості згасання, в даний час досягти ефективної стерилізації неможливо.

 

Але якщо світлодіод UVC розмістити в обмеженому просторі, всі проблеми будуть вирішені. Завдяки відбиттю світла розпад УФК буде відносно зменшеним. А обмежений простір дасть більше часу на процес стерилізації.

 

For example, we can put mobile phones, glasses, and even clothes in the UVC Sterilization box.


Q18 What are the disadvantages of UV sterilization box?


Although you take UVC light as an effective and instant solution, it cannot be denied that it still possesses limited strength.

 

For those areas where the ultraviolet rays are blocked by other objects, there is no sterilization effect at all.

 

Meanwhile, normal people have no way to distinguish products that use UVC rays versus other UV rays. Therefore, there are plenty of counterfeit UV consumer products on the market.

 

Moreover, the biggest advantage of UV sterilization box is that we can only sterilize small objects but not the entire room.


Q19 What are the advantages of UVLED+Photocatalyst?


In the whole sterilization, TiO2 has the bactericidal effect of photocatalyst under UVA irradiation. Not only can kill the virus, but also reduce the formaldehyde in the room.

 

For viruses not killed by TiO2, UVC can play a supplementary role. Because UVC only provides auxiliary functions and does not require so much energy, it reduces a lot of costs and makes it acceptable to most companies and people. 


Q20 What are the disadvantages of UVLED+Photocatalyst?


For most LED lamps, the L70 lifespan is more than 50,000 hours. That means, after using 50,000 hours, the lumen will decay to 70% of the original data.

 

But in the field of UVC LED, it's difficult to reach the same technology level, because the industrial development has not been matured.

 

Especially the best application scenario for UVLED+Photocatalyst technology is air sterilization, which has high requirements for the LED lifespan due to the long period of high-intensity operation.

 

Therefore, few manufacturers can meet the demand.


 PART THREE: UV Air Sterilization


Q21 What is the principle of UVLED+Photocatalyst?


The photocatalyst is a general term for photo-semiconductor materials with photocatalytic function represented by nanometer TiO2 (titanium dioxide).

 

Нанесення покриття на поверхню підкладки під дією ультрафіолету може викликати реакції окиснення та відновлення органічних чи неорганічних речовин.

 

Тоді він може ефективно вбивати різноманітні бактерії, а також може розкласти і нешкідливо обробити бактерії або грибки. Він також може розкласти деякі життєві запахи, викликані людською діяльністю.

 

У цьому процесі каталізатор не змінюється сам або він також не споживається в хімічній реакції, тому відбувається синхронізація двох процесів. 


Q22 Why is UVLED+Photocatalyst the best sterilization option?


Щоб краще відігравати роль стерилізації УФК, все більше виробників звертають увагу на поєднання ультрафіолетового освітлення та ОВК.

 

Чому? Оскільки стерилізація повітря є найкращим застосуванням УФК на даний момент. Тільки він може відповідати наступним умовам:

 

1. Small & confined space

2. Досить довгий час роботи

3. Робота над наявністю людини

 

Meanwhile, through repeated trials and experiments, we have developed an efficient and harmless sterilizing process, which is UVLED+Photocatalyst.

 

It is the air disinfection system applied for air heating and cooling system, with UV LED Strip & photocatalyst. It has a double effect on killing virus/ bacterial/ VOCs/ animals smelling immediately at a 99.93% killing rate.


Пов’язані знанняЕфективна та ефективна технологія стерилізації ультрафіолетового повітря у 2020 році


Q23 Що таке Фотокаталізатор TiO2?


Titanium dioxide is the naturally occurring oxide of titanium having the chemical formula TiO2, while a photocatalyst is a layering factor holding titanium dioxide as its energetic component.

 

An oxidation-reduction chemical reaction takes place when light is exposed to the photocatalyst substance. Air can be disinfected and purified using this chemical reaction.

 

Кілька властивостей, таких як оптичні та електронні властивості, ефективна фотоактивність, висока хімічна стійкість, низька вартість, нетоксичність (що означає безпеку для навколишнього середовища та людини), багаторазове використання та екологічність роблять TiO2 сильним кандидатом у процесі фотокаталізаторів. 


Q24 Why choose TiO2 as a Фотокаталізатор?


Вважається, що властивості розкладання TiO2 відомі з півстоліття. Проблема полягала лише у створенні програм, які, здається, вирішені зараз.

 

Отже, зараз діоксид титану можна використовувати для стерилізації повітря за допомогою різних застосувань, і одним із них є УФ-промені.

 

It can decompose any pollutants and we all can see the increasing health problems in the world. So, climate change is real and so is the TiO2 for air sterilization.

 

Багато експериментів і досліджень показують результати на користь, і саме тому ми твердо розробляємо різні додатки для приміщень і на вулиці, використовуючи його для очищення повітря від бактерій.


Q25 Can TiO2 cause cancer?


Some time ago, the European Union identified TiO2 as a category 2B carcinogen: May cause cancer to humans, there is insufficient evidence to prove carcinogenicity to laboratory animals, and insufficient evidence of carcinogenicity to humans.

 

The same category 2B except for " TiO2", there is also "coffee".

 

In fact, as long as humans are exposed to high-concentration (10mg/m3) of insoluble tiny particles for a long time, it may cause related diseases. But even those who are engaged in the production of TiO2, the concentration is only between 0.3mg/m3-6mg/m3.

 

What's more, when TiO2 is processed, it is firmly embedded in the molecular gap of the carrier (like air conditioning filter), and it can't run into the human lungs.

 

Therefore, please don't over-interpret the EU's carcinogen label for TiO2.


Q26 What is Organic LED?


An Organic LED (Light Emitting Diode) is also known as OLED or simply an Organic LED. It is a light-emitting diode (LED) in which the discharged electroluminescent layer is a film of an organic compound that emits light in response to an electric current.

 

The OLED emitter is the dominant ingredient in an OLED display. It is an organic material (made of Carbon) that radiates light when electricity is exerted. The fundamental formation of an OLED is an emissive coating, the middle between a cathode (which is infusing electrons) and an anode (which eliminates electrons).


Q27 What are the features of Organic LED?


  • Advantages of Organic LED


Organic LED has a great color rendering index (CRI), it is the ability to render actual colors of an object as compared to the natural light.

They are energy efficient or power-saving and cost-saving.

They are physically compact, easily portable.

 

  • Disadvantages of Organic LED


The constructing and assembling task of an Organic LED is very costly.

They are not water-proof so water or fluids can cause damage to them.


Therefore, please don't over-interpret the EU's carcinogen label for TiO2.


Q28 What is Inorganic LED?


Using crystalline semiconductor, Inorganic LEDs (also known as micro-LED) are manufactured, which are also light-emitting diodes (LEDs). The optical discharge wavelength can be determined by changing the configuration and composition of the substance. Germanium, gallium arsenide, gallium nitride, etc are some common materials used in this technology.

 

In contrast of organic LED, it is entirely packaged with inorganic materials.


Q29 What are the features of Inorganic LED?


  • Advantages of Inorganic LED


Inorganic LEDs are valued for their low energy utilization.

The lifespan of inorganic LEDs can be than 100,000 hours.

Inorganic LEDs are very delicate power electronics.


  • Disadvantages of Inorganic LED


After the evolution of Inorganic LEDs, the blueprint of lighting systems has been remarkably tangled and tricky.


These devices are also known as self-heating because they produce a lot of heat within the device due to the use of semiconductors.


Q30 How does the photodegradation of formaldehyde by TiO2?

 

Formaldehyde (HCHO) is one of the most common indoor pollutants.

 

Photocatalysis is an emerging and promising technology for indoor air purification by using TiO2 as a catalyst under the illumination of UV light, which can oxidize the VOCs into CO2 and H2O at room temperature and atmospheric pressure.

 

In order to remove HCHO efficiently, The TiO2/AC network film was prepared by loading nanometer particle TiO2 on the surface of activated carbon. 

 

The photocatalytic degradation of gaseous HCHO was performed by TiO2/AC network film under the irradiation of UV light. 

 

HCHO can be photocatalytic degraded on the surface of nanometer TiO2 under the illumination of UV light, during which the photo-production holes and electronics can react with the water molecules that adsorb on the catalyst surface to generate hydroxyl. 


 Більше інформації буде надалі оновлюватися ...


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