The best air purifiers for allergies can make all the difference for people who struggle with sensitivities to pollen, dust or pet dander, especially through the months of March to September. These clever devices contain a piece of technology called a high efficiency particulate absorbing (HEPA) filter, which traps 99.97% of indoor air pollutants down to 0.3 microns in size. For context, pet dander is around 2.5 microns — easy work for a HEPA filter.
Read more: https://www.livescience.com/best-air-purifiers-for-allergies
