Whether your child is going through the latest sick season or you’re looking for additional ways to protect your family against COVID-19, an air purifier is a beneficial item to have in your home. Essentially, air purifiers help sanitize the air around you and distribute clean air back into your space. If you’re pregnant, an air purifier is especially helpful, as breathing purified air may have a direct impact on your baby’s cognitive performance, such as attention span, memory, and problem-solving. 
“If you have children in your household, you may want to consider an air purifier with a true HEPA filter,” says John McKeon, MD, CEO and founder of Allergy Standards Limited (ASL). “These are highly effective at removing small particles, such as pollen, pet dander, and dust mites, which can trigger allergies and asthma symptoms in some individuals. You may also want to look for an air purifier with a low noise level [dB], as children may be more sensitive to loud noises.”
As Dr. McKeon describes, look for an air purifier that has a high-efficiency particulate air (HEPA) filter. These filters can remove at least 99.9 percent of dust, pollen, mold, bacteria, and any airborne particles with a size of 0.1-0.3 microns (µm). Some air purifiers have a HEPA and charcoal or carbon filter, which can be especially helpful in removing gas and odor from the air. You should also consider how often you’ll need to change the filter, its capacity (how many square feet of space it can clean), and its clean air delivery rate (CADR).
Read the full article on VeryWell Family.