(Updated in October: 5% off photocatalyst disinfection spray) The global spread of COVID-19 has caused the public to pay more attention to various sterilization products. Among them is the photocatalyst disinfection which has attracted much attention.
Why has photocatalyst become popular among disinfection products? This article will introduce to you the principle of photocatalyst disinfection, and introduce you to several Hong Kong home disinfection companies (including the latest self-cleaning disinfectant spray from health.ESDlife, and a limited time offer of 5% on the photocatalyst disinfectant spray from Raze Technology!) They provide door-to-door home photocatalyst disinfection services and disinfection sprays, so that you can ensure that your home environment is clean and free from bacterial and virus contamination.
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What is Photocatalyst?
Simply put, photocatalyst uses light energy to carry out a catalytic reaction to degrade pollutants in the air, such as formaldehyde, bacteria, and viruses, into carbon dioxide and water, while destroying the plasma membrane of bacteria.
Early photocatalysts can only be decomposed with the help of ultraviolet light. With the advancement of science and technology, a new generation of photocatalyst materials with titanium dioxide (TiO2) as the main component can function under ordinary indoor light. This is especially suitable for places exposed to sunlight, including kitchens, toilets, and even furniture.
How effective is the photocatalyst disinfection effect?
With the recent spread of COVID-19, the photocatalyst technology (which was originally used to remove formaldehyde) has been gaining recognition for its antibacterial and antiviral functions. Many research institutions also use ceramic tiles coated with photocatalyst to verify the photocatalyst disinfection effect. For example, the Shanghai Center for Disease Control and Prevention published a research report in the Chinese Journal of Disinfection in 2014 stating that “photocatalyst ceramic tiles can inactivate contaminated influenza viruses and polioviruses to varying degrees under light conditions”; another study published in “Applied Microbiology and Biotechnology” also showed that titanium dioxide has the ability to kill a variety of microorganisms, including bacteriophages, fungi, and mammalian orthoreovirus (MRV).
For household disinfection, most people use bleach or household disinfectant such as Dettol. Compared with them, how does photocatalyst excel?
- Durability: The photocatalyst coating is effective for a long time, and it can be decomposed as long as there is light; in comparison, the time of disinfection for bleach is short, so the home needs to be cleaned frequently
- Application range: Photocatalyst coating can be applied to almost every corner of the home, whereas disinfectant or bleach is limited to specific objects, such as doorknobs, floors, etc.
It can be observed that the photocatalyst material seems to be almost omnipotent, but it should be noted that the photocatalyst needs light to carry out its catalysis. Therefore, the effect is relatively poor in the absence of light. It should also be noted that compared to the instant effect of bleach, the catalytic effect will take a while to come into effect.
List of Photocatalyst Disinfection Services and
Products
There are disinfection companies in Hong Kong that provide household photocatalyst disinfection services or sell photocatalyst sprays. The following is an introduction to their products and services that healthy.ESDlife has provided for your reference.
1. Go Green Environmental Service Limited
Japan's Medical Grade Nano Silver Ion & Photocatalyst Coating
Home service details:
- Equipped with Japanese medical-grade nano-silver ion photocatalyst technology, the photocatalyst antibacterial disinfection coating can also exert a strong decomposing power under normal indoor light
- Continuously decomposes and eliminates viruses, bacteria, and other harmful substances and has a valid period of up to 3 years
- Service charge: starting at HK$2,000
- Promotion Offer: 10% off all Service via discount code “GOGREEN”(Promotion Period: Oct 5 – 20)
Home service details:
- Adopt the Japanese IWATA spray gun and air compressor, alongside their medical-grade photocatalyst, decomposition source agent, and deodorant purifier to completely remove formaldehyde and odor after decoration
- The technician sprays the formaldehyde removal agent around the whole house including walls, ceilings, curtains, and wooden furniture indoors and outdoors
- Service charge: starting at HK$2,300
- Promotion Offer: 10% off all Service via discount code “GOGREEN”(Promotion Period: Oct 5 – 20)
2. [NEW! Breakthrough Photocatalyst Technology] JHM Plus Limited
SAMBO+ Light Fresh® and Water Repellent Nano Spray
Product features:
- Compared with the traditional technology, the self-cleaning patented formula only needs indoor lighting for it to be decomposed, omitting the need for UV light, additional instrument assistance.
- After spraying, a stable nano-coating is formed on the surface of the object. The effect is stable and lasting; it is even effective for up to half a year.
- This water-based formula is non-toxic, harmless, non-flammable, and environmentally friendly.
- It can efficiently kill 99.9% of Staphylococcus aureus, Escherichia coli, Influenza A and Coronavirus, etc.
- It decomposes VOCs, formaldehyde and deodorizes
- Suitable for all surfaces including wood, leather, walls, fabrics, ceramics, plastics, and even personal items such as clothes and footwear
health.ESDlife price: HK$94/50ml (original price HK$99); HK$360/250ml (original price HK$380)
3. Raze
1. Formaldehyde Removal & Disinfection - RAZE Technology Photocatalyst Disinfection Service (valid for up to 2 years)
RAZE inside Professional Nano-Photocatalyst Coating Service
Service details:
- The professional photocatalyst coating solution provided by Raze Technology for enterprises and institutions targets formaldehyde removal, antibacterial, anti-virus, and anti-mildew
- Raze disinfection spray has a long-lasting effect which lasts for 2 years in continuously purified indoor air
- It has passed SGS safety certifications, deeming this service safe and reliable
- This new technology is self-developed and revolutionary
- 24-hour protection that can be activated by different types of light. Even without light, it can continue to operate for up to 8 hours.
2. Promotion of 5 photocatalyst disinfection products (with a 5% discount for a limited time)
*From now, purchase Raze Technology photocatalyst disinfection spray series at health.ESDlife to enjoy the following offers:
- 5% off discount
- Enter the discount code [RAZE5] for purchases over HK$500 to enjoy a 5% discount
Product features:
- Photocatalyst nanoparticles can penetrate the surface of objects and form a self-disinfecting coating for up to 3 months, continuously protecting against bacteria, viruses, volatile organic compounds, and odor threats
- Can be activated by UV and artificial light; even without light, it can operate for up to 8 hours
- The self-disinfecting coating effectively reduces the chance of a patient's cross-infection. Even Kowloon Motor Bus, Long Win Bus Company, and hospitals use this product
<<Swipe left or right for more details>>
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Disinfectant Spray |
Product Features |
Price |
Order now |
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Includes an activator base which helps to activate nanoparticles in the liquid |
HK$368(5% OFF) |
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Raze Original
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HK$156(5% OFF) |
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Raze Ceramic
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Applicable to the toilet, bathtub, sink, tile floor, and wall, etc. |
HK$137(5% OFF) |
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Raze Leather
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Applicable to the sofa, leather chair, footstool, leather jacket, leather bag, etc. |
HK$137(5% OFF) |
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Raze Wood
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Applicable to a wooden table, wooden chair, wooden cabinet, wooden floor, wooden door |
HK$137(5% OFF) |
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Alternatives to Photocatalyst
In addition to photocatalysts, there are also different methods for disinfecting and sterilizing homes. Let’s get to meet the technologies adopted by these companies and related product content.
1. Disinfection Company - GoGreen Environmental Service Limited
GoGreen Living Room Medical Grade Sterilization, Disinfection, and Deodorization Services
Home service details:
- Use Diversey Virex II 256 medical-grade disinfectant to effectively eliminate coronavirus, other viruses, bacteria, fungi, and molds, and deodorize (remove the odor caused by bacteria)
- Adopted by Hong Kong hospitals (U.S. Environmental Protection Agency certified hospital-grade disinfectant)
- Does not contain harmful substances and will not have any effect on pregnant women, children, or the elderly
- Service charge: starting at HK$1,500
- Promotion Offer: 10% off all Service via discount code “GOGREEN”(Promotion Period: Oct 5 – 20)
2. Disinfection Company - Blue Environmental Co. Ltd
Bluefresh Household Sterilization and Disinfection Services
Home service details:
- The disinfectant spray effectively kills 99.9% of bacteria, molds, and fungi in the air, thereby reducing the spread of H1N1, SARS, hand, foot, and mouth disease, and the common cold
- The spray can form a semi-permanent anti-bacterial and anti-fungal transparent protective coating on the surface of the object, instantly killing up to 99.9% of bacteria and mold spores in the air. It can also adhere to the surface of the object for up to 1 year to prevent bacteria and fungi from growing
- Service charge: from HK$900
3. Formaldehyde Removal Company - Green Manner Limited
Green Manner Natural Chitin - Formaldehyde Removal, Anti-bacterial & Mildew-proof Treatment
Home service details:
- Uses products registered by Taiwanese health experts, natural extraction, non-toxic and harmless, free of heavy metals
- It can remove formaldehyde without light and has long-lasting antibacterial and deodorizing features, preventing mold from growing
- Special water-based emulsion wax formula does not contain corrosive chemical components, thus it does not harm the surface of furniture, and can effectively fill and repair small cracks
- Service charge: starting at HK$3,888
<<Swipe left or right for more details>>
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Disinfectant Spray/Deodorizer |
Product Features |
Price |
Order now |
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Applicable to indoor space, window decoration fabrics, furniture cabinets, carpets, air conditioning filters, trash cans, shoe cabinets, car interiors, smoking rooms, etc. |
HK$312(5% OFF) |
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HOMEGREEN Natural Chitin
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Suitable for various leather sofas, car interiors, plasticized products, etc. |
HK$262 |
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HOMEGREEN Natural Chitin
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Suitable for all kinds of high-quality natural wood, log products |
HK$279(6% OFF) |
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HOMEGREEN Natural Chitin
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Suitable for car interior, plasticized products, steering wheels, etc. |
HK$176 |
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HOMEGREEN Natural Chitin Emulsion For Car 120ml
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Can nourish the leather/plastic interior of the car, prevent skin aging, and prevent ultraviolet oxidation |
HK$166 |
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HOMEGREEN
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Suitable for all kinds of wooden furniture cabinets, leather polyester, plastic products, smoking rooms, car interiors, etc. |
HK$282 |
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HOMEGREEN Natural
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Applicable to decorating bare wooden boards, plywood, plywood, unprocessed boards, etc. |
HK$528 |
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HOMEGREEN Antibacterial
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Suitable for all kinds of wood, leather, real leather, imitation leather, artificial leather products, wooden storage cabinets, car interiors, etc. |
HK$126 |
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4. VOC Removal Service - Honour Envirosafe Tech Limited
A. Home service details:
- Using the latest composite catalytic materials and technology to make DN-365 air catalyst, won a number of Japanese patents and individual patented technologies
- Decomposes formaldehyde, VOC, antibacterial, deodorant, and anti-mildew for 24 hours in a dark environment
- After spraying, a honeycomb-shaped porous ceramic protective film will be formed on the surface of the object, which produces a strong redox effect with oxygen, combines macromolecular inorganic ions, and overpowers the strong redox catalytic decomposition function to turn harmful gases into harmless water and carbon dioxide.
- All-natural, no additives, no harmful substances, safe and reliable, and higher protection for pregnant women, babies, and children
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Product Name |
Price |
Order now |
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HK$2,699 |
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Envirosafe Air-catalyst, |
HK$3,999 |
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Envirosafe Air-catalyst and |
HK$2,999 |
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Envirosafe Air-catalyst, Chitin and |
HK$4,999 |
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B. EcoPro Air Catalyst VOCs Removal Spray 300ml
Product features:
- Using new composite catalytic materials, it can be effective for day and night without UV or light
- Decomposes formaldehyde, TVOC, antibacterial, deodorant, and mildew proof
- Product price: HK$398
5. Disinfectant Spray - Moi Adore Company Limited
IMC Water Catalyst Anti Virus and Sanitizing Spray 100ml
Product features:
- Made in Japan, no harmful chemical ingredients
- Effectively kills a variety of bacteria and viruses, one spray can effectively eliminate bacteria and viruses, and deodorize
- Complies with international RoHS and REACH standards
- Can be sprayed directly on objects: mobile phones, computer surfaces, clothing, baby strollers, door handles, furniture, etc.
- Product price: HK$750
6. Disinfectant Spray - Live Smart
Zoono Z71 Surface Sanitiser & Microbe Shield Spray 50ml
Product features:
- Effective for 30 days at a time; it can effectively kill 99.9% of bacteria and viruses, including influenza A and B viruses (H5N1, H1N1), Escherichia coli, drug-resistant Staphylococcus aureus, and more than one hundred harmful substances
- Suitable for all kinds of metals, plastics, floors, toilets, mobile phones, keyboards, etc.
- Approved by the US FDA and passed the German skin test
- Product price: HK$168
There are many choices for household disinfection in the market. In addition to the photocatalyst, there are also others such as non-photocatalyst, chitin, etc.; you can also decide whether to have a disinfection company on-site service or buy different types of disinfection according to the situation of your home.
The anti-epidemic sector from health.ESDlife provides a variety of disinfection products and services. Even when the COVID-19 pandemic is slightly easing, you should not relax your vigilance. Keeping your home environment clean is the greatest guarantee for you and your family’s health.
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