Formaldehyde is a volatile period 3 - 15 years , benzene and volatile period of BTEX is about 3 years. The newly renovated rooms and buy new furniture have pollution , the general use of the following methods to resolve. 1 , keep good ventilation in order to enhance evaporation. 2 , indoor multi -point swing flower plants ( aloe, spider plants, ivy , cactus , etc. ) and activated carbon ( including furniture inside ) , etc. to absorb gas. 3 , if able to do so , the proposed indoor air testing, ask professionals for processing. Several methods shared , the result will be better for the next generation !!! , pregnant women should not live in such a room , if we must live , we recommend the above three methods share , especially the third , so that Insurance points. As put vinegar , pineapple, perfume , put onion or whatever deodorants , not very good, because it only masks the source of pollution , rather than clean up .