"Its board composition is particleboard, the price is 2288 yuan, the formaldehyde release amount is .77mg/L, the formaldehyde release rate is .92 mg/_ h, the TVOC release rate is .21 mg/_ h, and the grade is D. The board of BALLSTAD illegitimate three-door wardrobe is particleboard, the price is 1965 yuan, and the formaldehyde release amount is .3 mg.