Covid-19 has uprooted our entire way of life. The virus can attack us through the air, on surfaces, and from human contact. But sooner or later, technological breakthroughs, on top of an accessible vaccine will help us go back to our previous way of life. 

Ozonated water is one such technology that’s helping us fight against the virus until a vaccine is safe and easily accessible. There have been studies that provide proof for effective prevention approaches to fighting Covid-19. One of the major strategies to prevent coronavirus from spreading is to regularly disinfect our homes, workplaces, and public places. Ozonated water is a disinfection method that is far superior to chemical agents and equally effective against the Covid-19 virus.

Common Methods for Indoor Disinfection

Studies show that the new coronavirus infects people through respiratory droplets. An infected person’s cough can send infectious respiratory droplets flying as far as six feet. Therefore, it is vital to have a reliable and efficient air disinfection method to disinfect these high-risk areas.

The most common air disinfection method uses ultraviolet (UV) radiation. Yet, UV light has limited penetration capacity as UV radiation can only disinfect air close to the lamps. Another well-known air cleaning method is to employ a High-Efficiency Particulate Air (HEPA) filter. It is effective in reducing airborne bacteria in the air, though not effective in removing viruses, as it can only trap bacteria with a size bigger than 0.3 microns, thus, these disinfection methods are not ideal for the disinfection of Covid-19 contaminated areas. 

Chemical disinfectants have been known to be used for disinfection. Nevertheless, these chemicals are usually difficult to decompose, leaving harmful residues that are dangerous to human health.

On the other hand, ozone disinfection has been commonly used in hospitals to disinfect equipment and significantly reduce or eliminate the spread of bacteria. Ozone is a well-known powerful disinfectant for its ability to kill microorganisms effectively. It has penetration capacity and powerful oxidizing powers that make its disinfection efficiency superior to UV radiation and HEPA filters. And as ozone reverts back to oxygen, it leaves no chemical residues after the reaction. But can ozone disinfection also kill the coronavirus that causes Covid-19?

Can Ozone Disinfection Kill Covid-19?

There are reliable reports showing that ozone sanitation can kill Covid-19. But even before the pandemic of 2020, ozone sanitation was employed to sanitize environments infected with SARS-CoV-1 during the SARS epidemic of 2003. Since SARS-CoV-2, the coronavirus that causes the Covid-19 is also a member of the Coronavirus family-like SARS-CoV-1, it is not surprising that ozone sanitization is effective at eliminating Covid-19 and has the potential to bring widespread relief to those who deploy it at home and in workspaces.  

In fact, a recent study published last month from Fujita Health University, Japan, announced that they found low concentrations of ozone of 0.05-0.1 ppm, which is harmless to humans, can neutralize Covid-19 cells, potentially providing an effective way for hospitals to disinfect examination rooms and waiting areas during the pandemic. Researchers used an ozone generator in a closed room with Covid-19 samples. After 10 hours of releasing ozonated mist into the room, the virus’s potential for infection dropped by more than 90 percent. 

How Does Ozone Sanitization Kill Covid-19?

Ozone (O3) is a reactive element consisting of three atoms of oxygen. It is reactive because it will readily degrade back to its stable state, diatomic oxygen (O2) with the formation of free oxygen atoms or free radicals. The free oxygen atoms or radicals are highly reactive and will oxidize almost anything (including viruses, bacteria, organic and inorganic compounds) in contact, making ozone an enormously powerful disinfectant and oxidizer. 

Ozone can be produced by an electrolytic ozone generator. Once ozone is produced, it reacts with a pollutant and breaks it down into less complex molecules via a process called oxidation. The new coronavirus is considered an “enveloped virus”, which is usually more responsive to physicochemical challenges. Ozone destroys this type of virus by diffusing over the outer shell into the core, thereby destroying the viral RNA. Ozone by higher concentration can also destroy the outer shell by oxidation. 

How Can We Produce Ozone?

Ozone cannot be stored because of the short half-life and must be produced on-site and on-demand. Therefore, an ozone generator is the most critical component of a successful ozone system.

The electrolytic method is the safest way to produce ozone with higher purity. In this process, water is introduced to the anode side of the electrolysis cell, electrolytically decomposed, and converted to ozone. Through this method, in addition to gaining ozone in higher concentrations, the amount of gas aeration is also small, achieving the advantages of safety and low cost of post-processing.

The Biolux Space Sanitizer System Plus (SSS+) uses advanced electrolysis technology to convert water into high concentration ozone mist. Ozone is safely mixed and misted into the environment for air and surface sanitation.

The SSS+ can provide a safe low-concentration ozone of 0.05 to 0.1 ppm, which complies with the OSHA occupational safety regulations of the United States and can be used as a humidifier. This system is ideal for families with babies, toddlers, and the elderly especially in the current pandemic as they’re the most vulnerable group when facing the Covid-19 virus.

To learn more details of the BioSure Space Sanitizer System Plus, please visit the official website:

Killing COVID with Ozone

Coronavirus is continuing to lead news headlines today, and we are learning more every day about how deadly the virus can be.

With new strains emerging and a slower than expected rollout of a vaccine, there is continued uncertainty about how close we are to controlling COVID-19. We have all been working on developing habits, new methods of disinfection, and ways to keep our surrounding surfaces free of the virus. In most cases, this involves hand-wiping multiple areas with alcohol, bleach, or some other chemical disinfectant. But harsh chemicals aren’t the only disinfectant option. Ozone has a 99% effectiveness rate when killing pathogens and viruses like the flu, SARS, and the coronavirus.

What is the coronavirus?

According to the World Health Organization, coronaviruses are a large family of viruses that cause illnesses ranging from the common cold to more severe diseases such as Middle East Respiratory Syndrome (MERS-CoV) and Severe Acute Respiratory Syndrome (SARS-CoV). This strain of coronavirus, COVID-19, is closely related to the SARS virus (COV-2), but prior to late 2019 had not been identified in humans. The onset, severity, and the ongoing health effects of the illness vary widely in those who are infected.

As of now, researchers know that the new coronavirus is spread through droplets released into the air when an infected person talks, coughs, or sneezes. The droplets generally do not travel more than a few feet, and they fall to the ground (or onto surfaces) in a few seconds — this is why physical distancing and surface disinfection is effective in preventing the spread.

How does ozone kill a virus?

Typically, viruses are small, independent particles, built of crystals and macromolecules that multiply only within the host cell. The new coronavirus is considered an “enveloped virus.” Enveloped viruses are usually more sensitive to physicochemical challenges. Ozone destroys viruses by diffusing through the protein coat into the nucleic acid core, resulting in damage of the viral RNA. At higher concentrations, ozone destroys the exterior protein shell by oxidation.

Does ozone kill COVID-19?

While primary spread of COVID-19 is through the air, research has shown that the virus can live on many smooth surfaces, like doorknobs or tables, for several days. According to the Cleveland Clinic, the virus can live on glass for up to 5 days, wood up to 4 days, and plastic and stainless steel for up to 3 days. Disinfection of these surfaces is an important step to controlling spread.

When disinfecting both large and small areas, ozone gas has been proven to kill the novel coronavirus as effectively as many chemicals. Currently, there are several scientific studies that prove ozone gas can destroy the SARS coronavirus. A research team1 from Nara Medical University was the first in the world to confirm that ozone gas exposure was effective against inactivating the new coronavirus. The study was completed on SARS-CoV-2 which is the virus that causes COVID-19.

The procedure and content of the experiment took place as follows:

• Cultivate a new cell line of coronavirus
• Place a stainless-steel plate in an ozone-proof hermetic box installed in a safety cabinet
• Apply the new coronavirus to be tested
• Use an ozonator (medical device certified by PMDA: ozone generator) installed in the ozone-proof hermetic box. The ozone concentration in the ozone-proof hermetic box is controlled and maintained from 1.0 to 6.0 ppm. The amount of ozone exposure is set by the CT Value. (The CT 330 value is used, which is a verification test value for the certification of medical devices by the PMDA of the Ministry of Health, Labor and Wellness).
• After exposure, inoculate the cells with the virus
• Determine if the virus has infected the cells and calculate the amount of virus.

In laymen’s terms, they grew coronavirus cells to use for the experiment. Then, they placed a piece of stainless steel in an “ozone-proof,” airtight box and applied the virus to the stainless-steel piece. This was all inside of a safety cabinet for an additional level of protection. An ozone machine was used to raise ozone levels inside of the box from 1.0 to 6.0 parts per million (ppm). After exposure, they applied the coronavirus to live cells and measured how many were infected.

Results from the study concluded that,

1. 1. With a CT value of 330 (a 55-minute exposure to an ozone concentration of 6 ppm), a kill of 3-log to 4-log was achieved on the virus.
2. 2. At a CT value of 60 (a 60 minute of exposure to an ozone concentration of 1 ppm), a kill of 1-log to 2-log was achieved on the virus.

The findings from this study confirm that a high concentration of ozone at 55 minutes is capable of a 4-log (99.99%) kill on the SARS-CoV-2 virus. This type of treatment, with highly concentrated ozone for a longer period of time, is called shock treatment.

What ozone generators can I use to eliminate the Coronavirus?

Choosing the correct ozone generator is determined by the size of the space to be disinfected. The Ozone Solutions DR Series offers multiple sizing options for disinfection utilizing ozone gas. The DR-5 is ideal for rooms under 600 sq ft, and our DR-10 is successful up to 1200 sq ft. Ozone will penetrate floors and cracks, disinfecting as it moves through the space. Another option is our HVAC series. These machines are installed into your existing ducts and can help keep the entire house sanitized!

For safety reasons, no people, pets, or plants should be left in the room during the disinfection cycle. These machines can generate 1 – 5 ppm within 2 – 4 hours.

Supporting Data & Articles:

• According to the Cleveland Clinic, the virus can live on glass for up to 5 days, wood up to 4 days, and plastic and stainless steel for up to 3 days. Disinfection of these surfaces is an important step to controlling spread.
• Use an ozonator (medical device certified by PMDA: ozone generator) installed in the ozone-proof hermetic box. The ozone concentration in the ozone-proof hermetic box is controlled and maintained from 1.0 to 6.0 ppm. The amount of ozone exposure is set by the CT Value.
• The findings from this study confirm that a high concentration of ozone at 55 minutes is capable of a 4-log (99.99%) kill on the SARS-CoV-2 virus. This type of treatment, with highly concentrated ozone for a longer period of time, is called shock treatment.
• The original article on the Nara Medical University study can be found here.
• The team that made this discovery: Nara Medical University (Professor Toshikazu Yano, Director of Infectious Diseases, Takashi Kasahara, Director of Infectious Diseases) and MBT Consortium (members of the Subcommittee on Infectious Diseases: Quorl Holdings Co., Ltd., Sanyu Shoji Co., Ltd., Tamuratec Co., Ltd., Marusan Pharmaceutical Biotech Co., Ltd.)