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This article is based on an article from the Japanese edition of Engadget and was created using the translation tool Deepl.


Sharp Corp. has announced that it has demonstrated the effectiveness of its Plasmaclusters in reducing the number of new coronaviruses floating in the air.

The experiment was conducted jointly by Sharp and Professor Jiro Yasuda of Nagasaki University. The company confirmed that the number of airborne infectious new coronaviruses was reduced by 91.3% when Plasmacluster ions were irradiated for approximately 30 seconds in a test device that simulated droplet and aerosol infection.

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In the past, the company has also announced the effects of the Plasmacluster on the cat coronavirus and SARS.

This time, they have only demonstrated the effect of the plasma cluster on aerosol and droplet infections, but not on viruses attached to objects that can cause contact infection. However, the effects on viruses attached to objects will be verified in the future.

Plasmacluster is a unique function that Sharp installs in its air purifiers and other products. By emitting both positive and negative ions into the air at the same time, it claims to be able to break down airborne bacteria, molds, viruses, and allergens.

In 2012, the Consumer Affairs Agency ordered Sharp to prevent the recurrence of a problem with a vacuum cleaner with Plasmacluster in its catalog because the product's labeling violated the Act on Unjustifiable Premiums and Misleading Representations.

Sharp described the Consumer Affairs Agency's order as "a comment on the product's labeling in the catalog" and explained that it was not directed at the performance of the Plasmacluster itself. It emphasizes that the effectiveness of the Plasmaclusters has been proven by a third-party organization.

Source: Sharp


This article is based on an article from the Japanese edition of Engadget and was created using the translation tool Deepl. The Japanese edition of Engadget does not guarantee the accuracy or reliability of this article.