What is the formaldehyde content of Zhihu IKEA furniture?

"Its board composition is particleboard, the price is 2288 yuan, the formaldehyde release amount is 0.77mg/L, the formaldehyde release rate is 0.092 mg/_ h, the TVOC release rate is 0.2 1 mg/_ h, and the grade is D. The board of BALLSTAD illegitimate three-door wardrobe is particleboard, the price is 1965 yuan.