cloth with harmful chemicals, the main killer is formaldehyde. We have to distinguish whether the remaining excess of formaldehyde clothing, mainly through the sense of smell to determine, because formaldehyde has stimulated the taste, so do not buy clothes smell unusual. If the clothing does not come from a reputable brand, even if there is no obvious irritant smell, are advised to purchase after immersion in water, wash before wearing through. Because formaldehyde soluble in water, so after washing, which can effectively remove the residual formaldehyde in clothing.