1. Review test report of wardrobe cabinet. 

When you purchase wardrobe, you can ask the wardrobe supplier for quality test report

 to check whether the formaldehyde emission is within the accepted  standard range.

According to the national standard stipulation , the formaldehyde emission should be

 not more than 1.5 mg. per litre in the wooden furniture. Then ,you'd better choose 

wardrobe with E1 standard wood panel.Only  E1 class can be harmless to human body.

2.Ask for price. 

The cheap wooden wardrobe cabinet is often made of  super cheap artificial wood panel 

which is formaldehyde emission exceeds.Addditional,it's used lots of glue of poor quality which 

 lead to more formaldehyde emission.

3.Smell. 

On the present market of wooden wardrobe cabinet , there are lots of artifical parts in the

 wardrobe combination except all solid wooden wardrobe. The artifical parts may lead to tear

 or sneeze.When these symptom happens,maybe poor quality problem of high formaldehyde

 emission exceeds in the wardrobe.

4. Sign the contract with the supplier.

When purchasing the wardrobe,you'd better sign the contract including the environmental

 items.

5.Issued Invoice.  

Most of the customers are under the low price temptation only with a simple receipt. When

 poor quality of the wardrobe happens, you can't claim for something with such unofficial

 simple receipt.Thus,ask for official invoice for better valid evidence.