How to treat formaldehyde? Formaldehyde is a common harmful gas, which exists in many homes and offices. Long term exposure to high concentration formaldehyde environment may cause health problems, such as respiratory tract irritation, allergic reaction and chronic diseases. Therefore, it is very important to know how to deal with formaldehyde. This article will introduce some good methods to deal with formaldehyde, and provide some suggestions to reduce the harm of formaldehyde. 1....