Should you double up with air purifiers and humidifiers? Many don’t use air purifiers and humidifiers together just with the idea that they must not be used at the same time. Although both machines have different functions, they can’t be placed close so that the moisture coming from the humidifier won’t damage the HEPA filter in the air filter. These machines are used because you and your family may breathe in pollutants such as dust, fibers, and pollens which may trigger certain health conditions including asthma, skin allergies, cold, flu, and even skin diseases. But just like anyone else you…