The quick answer for “Do air purifiers dry out the air” is no. The air purifier only trap the pollutant particles like dust, dust mites, pet hair, pet dander, mold, pollen…, it is unable to reduce the moisture in the air. Low humidity is more common when the indoor air is cold air.Click to see full answer. Then, do HEPA filters reduce humidity?A HEPA filter helps you eliminate the dust on which these nuisances feed and proliferate. As we’ve discussed previously, you should take steps to reduce indoor humidity, too.Secondly, can air purifiers be harmful? The wrong type can cause health issues or discomfort. HEPA filter-based air purifiers produce no harmful by-products and are good for your health. They remove harmful and allergy-causing particulates from the air, leaving only fresh air behind. Ozone generators are a poor choice and are potentially harmful. Keeping this in consideration, do air purifiers take moisture out of the air? Air purifier can neither add to nor remove moisture from the air. Long Answer: Air Purifiers doesn’t remove moisture from the air like a dehumidifier. It is a device whose principal function is to trap air pollutants particles like dust, pet dander, mites, mold etc.Do air purifiers dry out sinuses? Air Purifier Location Many people will place an air purifier where they spend most of their time. Unfortunately, when you do this, you also expose yourself to the air purifier for a long period of time. This prolonged exposure can help dry out your sinuses and cause headaches, nose bleeds, and even dizzy spells.