To test coronavirus removal, a Blueair HealthProtect\u2122 7410i air purifier was placed inside a Class III biological safety cabinet, measuring 0,37m\u00b3. Although our 7400 series models are AHAM Verifide\u00ae for room sizes up to 38 m\u00b2, the size of the testing area was limited by safety protocols for the volume of aerosolized virus particles allowed. The live virus particles were pressurized, also called aerosolizing, using a device called a nebulizer to replicate the fine particles of respiratory droplets spread by an infected person. Theses droplets can hang in the air for up to a few hours.
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Phase 1 <\/strong><\/h2>\n\n\n\nTo understand how much of the virus remains in the air without an air purifier, three tests were conducted inside the bio-safety cabinet with the air purifier turned OFF. Virus particles were released into the area using a pressurized device, turning the particles into an aerosolized mist and circulated by a fan for 10 minutes to ensure they were distributed throughout the testing area. After 5 minutes, a sample was taken to measure the concentration of coronavirus particles in the air. An average of the three tests became our baseline measurement.<\/p>\n\n\n\n
Phase 2 <\/strong><\/h2>\n\n\n\nNext, the same process was repeated three times, except, this time, the HealthProtect\u2122 7410i air purifier was turned ON at the 10-minute mark. Like the three baseline tests, air samples were taken after 5 minutes to measure the concentration of aerosolized coronavirus particles. An average of the three tests became the reduction or removal measurement. When compared with the baseline measurement, the results show 99.99% of the live aerosolized SARS-CoV-2 was removed from the air in the test chamber.<\/p>\n\n\n\n
“When used properly, air purifiers can help reduce airborne contaminants, including viruses in a home or confined space,” says the EPA.
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Next, the same process was repeated three times, except, this time, the HealthProtect\u2122 7410i air purifier was turned ON at the 10-minute mark. Like the three baseline tests, air samples were taken after 5 minutes to measure the concentration of aerosolized coronavirus particles. An average of the three tests became the reduction or removal measurement. When compared with the baseline measurement, the results show 99.99% of the live aerosolized SARS-CoV-2 was removed from the air in the test chamber.<\/p>\n\n\n\n
“When used properly, air purifiers can help reduce airborne contaminants, including viruses in a home or confined space,” says the EPA.
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