Over 1,100 older adults in 95 nursing homes got air purifiers. Lab tests showed these filters remove 99% of airborne viruses. But in this real-world study, no fewer winter infections or antibiotic use. A reminder that patient benefits differ from lab efficiency.

New study finds portable air purifiers didn't prevent respiratory infections in nursing home residenA recent randomized controlled trial conducted in the United Kingdom found that portable HEPA air purifiers did not reduce winter respiratory infection episodes, other infections, or antibiotic use amwww.cidrap.umn.edu