Wearing a protective mask is one of the most significant changes in people's daily lives brought about by the global COVID-19 pandemic. Although when most people don't seem to wear it properly, scientists try to come up with different ways to fight the coronavirus. Estonian technology company Respiray has also joined this trend. It has recently developed and launched a wearable air purifier that claims to use ultraviolet (UV) to kill more than 99% of the viruses and bacteria in the air inhaled by the wearer.
Respiray stated that the device was jointly developed with universities in Estonia and Poland and was supported by the Estonian Ministry of Education, which will distribute it to teachers in schools. Indrek Reimand, the vice-principal of the Ministry of Education, said that he believes that Respiray's air purifier is an additional element in the toolbox to fight COVID-19, in addition to vaccines, social distancing and masks, which are the subject of a series of new studies. Regarding their effectiveness, safety, and the best way to use and disinfect them.
"There is no magic wand to fight the virus, but the combination of many efforts can help get rid of the pandemic," Lehmand told Reuters.
The company says its air purifiers are based on breathing thermodynamics—most of the air inhaled comes from the airflow rising from the body surface—and known ultraviolet disinfection properties.
The device consists of a plastic box worn around the neck with an optional transparent face screen that extends upwards to keep the face fully visible. It is powered by a battery and charging lasts about eight hours. Respiray said that the air first passes through an air intake filter to remove dust and larger particles, then flows through the UV-C LED module that can kill viruses and bacteria, and then ventilates the user's face.
The company said that the test of the University of Lodz in Poland reduced the bacteria of Escherichia coli and Staphylococcus aureus by 99.68% and 99.88%.
A study by the University of Tartu in Estonia achieved a 99.4% efficiency in neutralizing Alphavirus. Liane Viru, the head of the university’s core biosafety facility, said that the size and structure of the virus are comparable to the SARS-CoV-coronavirus that causes COVID. 2 Similar to-19.
"The remaining traces of virus particles are unlikely to cause infection in the target organism," Viru said.
Respiray stated that the Estonian retailer has ordered the equipment for its customer service staff, and delivery is expected to begin in March. The full retail price is 279 Euros (340 USD).
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