You can't. Because in the standard rules for the use of formaldehyde promulgated by the state, the indoor decoration industry standard is ≤0.5mg/L, and the outdoor decoration standard is ≤ 0.7 mg/L. For example, the decorative materials of Guangzhou Languoshu are outdoor decoration materials, and both of them have independent formaldehyde consumption standards. Since there is a standard, it means that it cannot exceed the standard.