This is a developing story. For the latest local updates head to LAist.com and sign up for breaking news alerts. Interest in air filters and purifiers is spiking in Southern California, including ...

Researchers in Finland published interim results in March from an ongoing study on the effectiveness of portable air cleaners in daycare centers to reduce childhood infections. The study compared two ...

Built-in mechanical ventilation and portable air cleaners, used by hospitals to help mitigate the spread of viruses, may actually spread viruses and other pathogens in some instances, according to new ...

Add Yahoo as a preferred source to see more of our stories on Google. Some portable air cleaners generate chemicals such as ozone, formaldehyde and hydroxyl radicals to kill microbes.