Which company does Jiande go to for formaldehyde?

If you major in formaldehyde detection, the accuracy of the company's equipment should be guaranteed. Calculate the price according to the inspection area and points. Each company charges different companies, but they say that if formaldehyde can be removed, it is a fool. There is no particularly effective in addition to formaldehyde method at present. It is recommended to buy more green plants and open the window regularly for ventilation! Hope to adopt!