Pomelo peel can only cover up the decoration odor (such as benzene series) and purify the air, but it has no effect on the new house in addition to formaldehyde. If the indoor formaldehyde exceeds the standard, it is recommended to ventilate or find a formal in addition to formaldehyde company for treatment, which is more effective. In fact, for the treatment of formaldehyde, as long as it is a qualified product, the most effective method is ventilation.