Question: The Higher The Ozone Concentration, The Better?

In order to test for the effectiveness of ozone in reducing airborne bacteria, a conference room with area about 12㎡ was selected for testing. For safety, the disinfection process was carried out when humans, animals and plants were evacuated. 

Depends on the size of the room, an ozone generator with 50mg/hr output (Oshiner Ozone Air) was chosen. The capacity of the chosen ozone generator has the ability to maintain high concentration of ozone (0.5 – 5 ppm) inside. Circulation fan was placed in the room to ensure good distribution of ozone. After closing all the windows and doors, the ozone generator was turned on to begin ozonation process. Different levels of ozone (0.5, 2.5 and 5 ppm) were tested to determine the optimal value for killing as much microorganisms as possible. After turning off the ozone generator, ozone level began to drop as it was undergoing self-decomposition to oxygen.

In general, ozone concentration drops to below 0.02 ppm in a hour after ozonation, therefore we should wait for at least one hour (after turning off the generator) before entering the “ozonated” room. 

As shown in the figure, the ozone concentration raise very slowly in the initial period (the first few minutes). The delay in building up the ozone concentration is probably due to the consumption of ozone for oxidizing pollutants (including bacteria and viruses) in the initial period. After oxidizing the major pollutants, ozone concentration inside the room raise rapidly up to the desired level. To ensure entire room disinfection, high level of ozone was maintained for 30 minutes. When ozone generator was off, the ozone concentration dropped gradually as ozone converting back to oxygen. 

The total airborne bacteria in the conference room was measured before and after each ozonation. The disinfection efficiency of ozonation at different concentration was tabulated in Table 1.

Ozone Concentration0.5ppm2.5ppm5ppm
Before Ozonation 592 CFU/m3 612 CFU/m3 552 CFU/m3
After Ozonation 169 CFU/m3 42 CFU/m3 57 CFU/m3
Reduction % 71.5% 93.1% 89.6%

The results show that ozone is effective in reducing airborne bacteria. At higher ozone level, the sanitizing effect increased. Over 90% of airborne bacteria could be reduced at 2.5 ppm concentration. Further increase of ozone concentration to 5 ppm does not beneficial in bacteria reduction percentage.

Why the result is not 99.9%?

High removal percentage could not be achieved because the room was not 100% sealed. Doors should be opened briefly during each air sampling and air exchange from outside was unavoidable. For safety reason, excessive high concentration ozone should be avoided and the lowest ozone concentration that could kill most of the microorganisms should be selected as optimum. Depends on the contamination level, 0.5 – 2.5 ppm ozone level is adequate for air disinfection.

Conclusion

Experimental data shows that ozone is effective in reducing airborne bacteria of unoccupied room. Over 90% of airborne bacteria could be reduced after ozonation. As viruses are generally more susceptible to ozone than bacteria, it could assume that all viruses are killed if large percentage of airborne bacteria are removed. Ozone is a gas that has good penetration capacity and powerful oxidizing power, thus its disinfection efficiency is superior to UV radiation and HEPA filter. As ozone disinfection is conducted in unoccupied room only and all the residual ozone will be decomposed after the treatment, ozone toxicity to human is therefore not a concern. Given the advantages of strong oxidizing power, good penetration capacity and no harmful residues left after the treatment.

Ozone Generator Market Driven By Rapid Industrialization Across Developing Economies

The original article is from MarketWatch.

Ozone generators find extensive applications across a broad range of industries, with air treatment and water treatment being among most prominent ones. Manufacturers of ozone generators are constantly focusing on product innovations to introduce advanced and more efficient products. For instance, in 2017, Toshiba had launched the TGOGSTM range of compact ozone generators designed for optimum efficiency. These generators can be customized as per the particular needs of customers and can be used to treat drinking water as well as recycled municipal and industrial wastewater.

Ozone generators are also widely used in the automotive sector to improve the in-vehicle air quality. In May 2020, a car rental company on Spain’s Costa Del Sol announced that it is utilizing ozone generators to disinfect cars in wake of the coronavirus outbreak.

Driven by a positive application outlook in air treatment, water treatment, and aquaculture, global ozone generator market size is slated to surpass a valuation of US$450 million by 2026. Let’s take a look at some of the top trends impacting the product penetration in the near future.

In terms of the capacity, the demand for 5mg/hr – 100mg/hr ozone generators is expected to grow substantially over the next few years. This can be mainly linked with a growing focus towards improving the quality of indoor air across residential and commercial establishments. Ozone generator manufacturers are aiming to design innovative solutions with advanced instrumentation features to monitor pH, temperature, ammonia, dissolved oxygen, and water flow.

Ozone generator technologies can be bifurcated into electrolytic, ultraviolet, corona discharge, and cold plasma. Electrolytic ozone generators are increasingly gaining prominence in water treatment applications, which can be associated with growing urbanization and surging demand for clean and fresh drinking water.

Prominent use in ozone air treatment

In addition to air treatment and water treatment, ozone generation technologies are used in laboratory and medical equipment, food processing, pulp bleaching, aquaculture and fish farming, produce storage facilities, and organic synthesis. With growing focus towards improving the urban indoor air quality (IAQ), the product in air treatment applications is set to grow exponentially.

Ozone air treatment is used for air disinfection and odor control in kitchen exhausts, grease traps, VOC treatment, and garbage rooms. While air treatment applications will continue to augment ozone generator market forecast, the product is bound to witness growing adoption in aquaculture and fish farming since it has a quick reaction rate and produces fewer hazardous by-products.

MEA to emerge as a major revenue terrain

Considering the geographical landscape, Middle East and Africa (MEA) ozone generator industry is well poised to witness lucrative growth opportunities in the future. The regional growth can be attributed to recent trends in urbanization and commercialization. Meanwhile, robust industrial development in Latin American countries will positively influence the regional demand for ozone generators.

Governments in these regions are actively spending on the development of municipal as well as industrial wastewater treatment infrastructure. Several countries have tightened the regulations pertaining to discharge of wastewater.

Ozone generation technologies will continue to play a prominent role in air and water treatment, considering the surging demand for clean indoor air and fresh water in the upcoming years. Manufacturers are bound to witness substantial opportunities from additional applications such as ozone bleaching in the pulp bleaching industry.

How to maintain your fridge hygienically clean?

As crazy as it sounds, your refrigerator becomes a good place for the growth of bacteria such as salmonella, e-coli, and botulinum if you don’t pay attentions on cleaning. That’s a reason your food cannot be stored for long. Don’t your fridge make you sick? Start now, make a change to freshen your refrigerator!

Is Disinfectant OK to Use in the Fridge?

Disinfectants – like bleach – should never be used inside refrigerators. As with other kitchen cleaning products, any disinfectant that comes into contact with food could make people ill because of the strong chemicals they contain. Stick to specially formulated products that are safe to use inside a fridge, or opt for natural cleaners instead.

Is Activated Charcoal Helpful?

Well, activated charcoal may works well as deodorizer to absorb smells. However, it works nothing to eliminate the bacteria and virus in the refrigerator. Also, you’ll just have to change it out for fresh charcoal once your fridge starts to smell a bit funky again.

Are Natural Products Useful?

Natural products can be very useful when cleaning a refrigerator, and they are safe ways to keep the appliance clean and hygienic. Regular baking soda can be great for removing stains and absorbing bad odours, while white vinegar is good for cleaning any stainless steel elements, including refrigerator doors if you have a stainless steel model. Just remember to test on a small area first to check there are no adverse effects.

What is the Simple One Stop Solution?

To reduce the hassle when fridge-cleaning time rolls around, there’s a quick and easy way to maintain the cleanliness of your refrigerator on a day-to-day basis.

Oshiner Fridge Freshener, your best fridge mate to freshen the refrigerator and food together. It is a small rechargeable ozone sterilizer that puts in the fridge, which can stand by over 30 days after fully charged. Ozone can sharply kill 99.9% bacteria and viruses to keep fridge hygienically clean and store food fresh at 2 – 3 weeks long.

How to choose a steriliser against coronavirus?

As concern about coronavirus grows, disinfactant, hand sanitizer and sterilising machines are in high demand. Let’s talk about how to choose the right steriliser during epidemic.

UV and Ozone technology are commonly applied for sterilisers. Both have very powerful sterilization. Have you ever wonder how ozone and UV differ? If you want to buy a sterilizer at home, which one would be the best choice?

UV LAMPS

UV technology what we mentioned actually is UV-C light, the wavelength is between 200 and 280 nanometers. It can kill most of dangerous bacteria and viruses from MRSA to E. coli. Normally, when you use UV lamp for disinfection, you should put the objects closely to the lamp (within 1,5m) . The effectiveness of UVC depends on the length of time a microorganism is exposed to UV (within 30 – 60 mintues at least). Otherwise, it’s useless.

Dust and films coating the bulb will lower UV output. Therefore, bulbs require periodic cleaning and replacement to ensure effectiveness. The lifetime of germicidal UV bulbs varies depending on design. 

Caution: Skin exposure to germicidal wavelengths of UV light can produce rapid sunburn and skin cancer. UV can damage the retina of the eye as well. Remember to leave from the room when using UVC for sanitization. It’s dangerous!

OZONE STERILISER

Ozone, the most powerful disinfectant, is 50 times more effective at disinfection compared to the most popular disinfectant – chlorine, and the effects of its action are visible 3,000 times faster. It has been widely applied for water purification, air sterilization and food storage over hunderd years.

Ozone can kill 99.9% bacteria and viruses. It’s been proven can kill SARS and MERS Coronavirus. One obvious benefit of ozone is that the reaction /sterilization is instantaneous as the gas contacts with air/object surface. Ozone has a 20-30 minute half-life in the air meaning that its concentration will break down quickly. 

The only concerns of Ozone is the safety in use. Depends on the contamination level, 0.5 – 2.5 ppm ozone level is adequate for air disinfection. An accuracy control of the ozone concentration is one of the key indicators of ozone sterilisers. Caution: DON’T USE INDUSTIAL OZONE GENERATOR TO DO DISINFECTION AT HOME. Ozone abuse may cause throat irritation, cough, chest pain, shortness of breath.

Oshiner Ozone Air Purifier, with timer included, it can be easily operate and avoid overusing of ozone. The ozone concentration is strictly controlled under U.S. & EU Standard that you don’t need to worry about overusing the ozone and affecting health.

Kind Reminder: If you have asthma or other respiratory illness, or sensitive to the ozone smell, we kindly suggest you to be away from the room when the unit works.

Ozone Disinfection for New Coronavirus (COVID19)

Why do we need air disinfection?

The outbreak of new coronavirus (COVID19) worldwide has increased people awareness of the transmission of respiratory diseases in indoor environment. Evidences show that CORONAVIRUS could survive on respiratory droplets for up to several days and people breathing air containing these droplets will be at high risk to get the diseases. Therefore, there is a need for a reliable and efficient air disinfection method to decontaminate at home and high-risk areas.

Disinfection Methods by UV, HEPA Filter, Chemicals & Ozone

The most common air disinfection method is using ultraviolet (UV) radiation. UV radiation (UV-C) kills bacteria and viruses by damaging the DNA/RNA of the cells of microorganisms. However, UV radiation could only disinfect air close to the lamps as UV light has limited penetration capacity.

Another well-known air cleaning method is to use HEPA filter. HEPA filter can capture particulate sizes down to 0.3 microns, and so bacteria with size larger than 0.3 microns could be trapped in the filter, which is very effective in reducing airborne bacteria in air. But it’s useless to remove viruses.

Chemical disinfectants could also be useful for air disinfection, usually by means of spraying. However, these chemical disinfectants are generally difficult to decompose. It will leave toxic chemical residues that are hazardous to human health.

Ozone (O3) applications has been recognized as a safe disinfectant for water and food for many years now. It can be safely used in both gaseous and aqueous forms as an antimicrobial agent in the treatment, storage, and processing of foods, including meat and poultry. It is a very powerful disinfectant. Ozone could also be an effective air disinfectant. It can sharply kill 99.9% bacteria and viruses in air to purify the the room hygienically clean. As viruses are generally more susceptible to ozone than bacteria, it could assume that all viruses are killed if large percentage of airborne bacteria are removed.

Below is the disinfection efficiency of ozonation at different concentration in a room of 15㎡, which has been tested for 20 minutes. The results show that ozone is effective in reducing airborne bacteria.

Reduction of Airborne Bacteria after Ozonation

Ozone conc. 0,5ppm2,5ppm5ppm
Before Ozonation590 CFU/m³615 CFU/m³ 550 CFU/m³
After Ozonation170 CFU/m³ 40 CFU/m³ 55 CFU/m³
Reduction%71%93%90%

However, for safety reason, excessive high concentration ozone should be avoided and the lowest ozone concentration that could kill most of the microorganisms should be selected as optimum. Depends on the contamination level, 0.5 – 2.5 ppm ozone level is adequate for air disinfection. Also kindly note that please stay away from the room when the ozone concentration is above 0,1ppm and return back after half an hour.

How to protect yourself from new coronavirus?

From the latest information on COVID-19 outbreak, there’re 64 countries affected the new coronavirus so far. Then how we protect ourselves against the COVID-19 is very important. Take care of your health and protect others by doing the following:

Firstly – Don’t panic. Viruses can only be spread through droplets when an infected person coughs, sneezes or talks, which is quite similar of flu. It might also be spread landing on surfaces, such as seats on buses or trains or desks. But the virus won’t survive long on objects.

Secondly – Wash hands frequently. Wash your hands with running clean water and apply soap or the hand sanitizer with 75% alcohol, for at least 20 seconds.

Thirdly – Wear disposable medical mask. It can block liquid droplets to protect yourself and the others.

Forthly – Disinfect to improve the indoor hygiene. It’s better stay home and try to go out less. If you have returned home from some public places like airport, subway or supermarkets, remember to disinfect your coat and indoor places. We kindly recomend you use Oshiner Laundry System and Oshiner Air Purifier for clean and sterilization. The active oxygen can eliminate 99.9% bacteria and virus for anti-epidemic.

What’s more – Avoid touching eyes, nose and mouth. Hands touch many surfaces and can pick up viruses. Once contaminated, hands can transfer the virus to your eyes, nose or mouth. From there, the virus can enter your body and can make you sick.

Finally, if you had a high temperature, cough, runny nose, sore throat or difficulty breathing, do not leave your home until you have been given advice by a doctor. We believe, with everyone’s efforts, we can overcome this epidemic!

How to save cost on laundry?

How much is your laundry really cost you?

The average American family washes about 300 – 390 loads of laundry per year, or about 6-7.5 loads per week. No matter how cheap the detergent you use, you would spend at least $150 per year. Included bleaches and softeners,  the cost would be reached to $400 ~ $700 more for a family of four per year. Water & Electricity are not counted.

But if you use Oshiner Laundry System (Active Oxygen Washer Mate), it would be another story. By the power of ozone, it needs only little to no additional chemicals to do laundry. You don’t need to worry about putting too much detergent and the chemical residues. Amazingly, active oxygen removes up to 99.9% germs and bacteria on clothes, even with cold water. It cleans in a more natural and eco-friendly way. You could save at least $650/year. Laundry would be easy and money saving.

Easy to Laundry

Oshiner Eco-laundry makes a healthier life.

An innovative laundry way without detergent has come out. Thanks for the ozone technology, it’s time to say goodbye to all the chemicals.

Oshiner Ozone Laundry System uses the power of oxygen to clean and sterilize clothes. You don’t need to put a lot more of the detergent, bleach, and softener any longer.

It has been proven that the disinfecting power of oxygen is 3000 times higher than chlorine and 30 times than cresol, which can eliminate 99.8% viruses and bacteria. Amazingly, the ozone smelling will completely evaporate in the air after 20 minutes.

Features

♦ Money Saving – 75% Less Detergent & Saving 7 Tons+ Water Yearly

Oshiner ozone laundry system uses little to no detergent and decreases the rinsing times to clean the clothes. It could sharply reduce washing expenses and save water.

♦ Eliminate Viruses and Bacteria

Its strong sterilizing power of natural oxygenation can kill 99.8% viruses and bacteria to keep clothes much cleaner, and good for health.

♦ Avoid from Skin Allergies

Effectively clear residual accumulated detergent and viruses to avoid skin allergies.

♦ Keep Clothes NEW

Our ozone generator does laundry in a more natural way, which highly prevents cloth biber damage and fading. It also makes your clothes much softer.

Freshen the Bathroom ASAP!

You cannot imagine how many germs hidden in your bathroom. You might easily discover the obvious dirts from the toilet seat, the floor, or the wall. But the worst is you have no idea of how dirty of your toothbrush, the towel, the makeup brushes, the shaver and others in the room.

The conventional air purifier is only to eliminate the odor, dust or microscopic air pollutants via filters and fan, which can hardly sterilize the germs and bacteria in the air. Your toothbrush might have at least 200,000 bacteria per square inch. It could be dirtier than your toilet.

                                                                                                                                                                    [Picture from Internet]

To improve IAQ (Indoor Air Quality) is the top priority to keep your bathroom at cleanest! 

Oshiner Mini Air Purifier, uses the ozone technology to clean the air with no filters and kill the odor & harmful germs safely. 

Featurs

♦ No Filters to Replace

♦ Small & Tiny – It’s just like an iPhone 7 Plus!

♦ Touch Screen to Easily Operate

♦ Timing Switch to Safely Control

♦ Low Energy Consumption

The air purifier is very tiny that it’s just like an iPhone 7 plus. With the plug-in design, it’s very space-saving. There’re 3 timing options, which is lightly to be used. And the ozone concentration is strictly controlled under 0,1ppm (US & EU Standard). You don’t need to worry about overusing the ozone and affect the health.

What you wait for? Start to freshen your bathroom NOW!

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