It is rarely said that formaldehyde exceeds the standard for mattresses. If so, it must be because the material used in the internal cushion is too inferior.

Formaldehyde is generally related to the brown mattress part. You can smell it. If the smell is strong, it means that the brown mattress is of poor quality and has a high formaldehyde concentration. Look with your eyes. If the brown mattress has a strong smell, The color is very dark and rough, which also means that the brown grade selected is poor and the formaldehyde concentration is high.

I don’t know where you are from. I am from Fujian. What I buy at home is a local brand - Danhai mattress. The price is moderate and the quality is very good. Been using it for over three years.