![]() In this study, we propose a device that blocks droplets/aerosol using negative ions and an electric field. We considered that negative ions and electric field are solutions applicable for blocking droplets/aerosol at places where people communicate. Negative ions and an electric field are conventionally applied in air cleaners because they efficiently collect airborne viruses and bacteria 10, 11, 12. To achieve sustainable countermeasures against infections without impairing communication, we focused on the use of negative ions and an electric field, which block droplets/aerosol but transmit sound and light. Therefore, a method that transmits sound and light while blocking droplets/aerosol is required. The reflected light prevents the reading of facial expressions. The reflected voice annoys the speaker 9, and the blocking effect disturbs communication. The disadvantages of the partitions are the reflecting and blocking of sound and light. Partitions are countermeasures used to block droplets/aerosol transmission during communication. Therefore, sustainable countermeasures against pandemics without disrupting economic activities and daily interactions are required. However, they were unsustainable countermeasures because of severe problems including reduced face-to-face interaction and induced severe economic losses 4, mental illness such as depression 5, 6, and, as we have previously reported, stunted social-emotional skills among preschool children and increased abusive parental behaviors 7, 8. In the early stages of the COVID-19 pandemic, lockdowns were applied as strict countermeasures worldwide 3. Therefore, countermeasures against droplets/aerosol transmission are essential for maintaining public health. Additionally, COVID-19 is mainly transmitted through droplets/aerosol and contact 2, leading to a serious global pandemic. For example, H1N1 influenza, severe acute respiratory syndrome (SARS), and Middle East respiratory syndrome (MERS) have spread due to droplets/aerosol 1. Enhance overall health and well-being – negative ions can activate, rejuvenate and revitalize all of the body’s systems and cells, promoting a stronger overall health and a sense of well-being.Infections are spread via droplets/aerosol produced by talking or coughing.The function of Cilia- which protect your lungs from irritation is improved, thus reducing instances of respiratory illnesses, like colds and flu, hay-fever and asthma. Strengthen the immune system – high levels of negative ions promote production of globulin in the blood, resulting in stronger resistance to illness.Elevate mental concentration and performance– Negative ions increase the flow of oxygen to the brain resulting in higher alertness, decreased drowsiness, and more mental energy. ![]() ![]() Clinical studies have shown that negative ion therapy is an effective treatment for depression and anxiety disorders and is a natural alternative to chemical anti-depressants. This is particularly helpful for those suffering from depression, low moods, seasonal affective disorder or winter depression due to lower levels of serotonin in the brain. As you inhale negative air ions, your blood carries these ions to your brain and stimulates the release of a brain chemical called serotonin. Depression, Anxiety and Stress – negative ions can calm and relax the nerves by normalizing breathing rate, decreasing blood pressure and relieving tension and stress.Increase metabolism and promote better digestion – by stimulating the exchange of electronic substances in cell walls, negative ions help increase metabolism and ease tension in the stomach and intestines, thereby promoting the production of digestive enzymes, and enhancing digestion.Purify Blood – by increasing the levels of calcium and sodium in the blood stream, negative ions help restore a healthy pH balance to the blood.Aid in relaxation, increased calm and better sleep – by promoting abundant oxygen levels in the blood, negative ions help normalize brain function, resulting in relaxation, increased calm and better sleep.Additionally, by normalising serotonin production in the brain, negative ions help to accelerate recovery from chronic fatigue as well as physical recovery from workouts/training sessions, illness and injury. Help with recovery from physical exhaustion or fatigue – by increasing oxygen levels in the blood and facilitating more efficient oxygen utilization.Kill viruses, bacteria and allergens– Negative ions are proven to clear the air of dust, pollen, pet dander, mold spores and other potential allergens, as well as significantly decrease airborne viruses and bacteria.
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