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Pay attention to the following points when purchasing ordinary computer office chairs

a. The air pressure rod must pass safety certification. Generally, regular air pressure rods will be engraved with the brand logo and related parameters on the rod. When there is no label, you can ask which factory the air pressure rod is produced and whether it has passed ISO9001 national safety quality certification or SGS safety certification (short for Societe Generale de Surveillance SA) , Translated as "General Notary Company", is issued by the world's largest and oldest private third party engaged in product quality control and technical appraisal by a multinational company), it is best to ask him to show relevant certification documents.

b. The material must be comfortable and breathable. Office chair materials are mainly divided into three types: the first is leather + sponge, which has good air permeability, PU leather is generally breathable, but usually leather seats are more expensive; the second is mesh + sponge, the most common and breathable Good office chairs have good performance. The filled sponges in good office chairs are still very vigorous after sitting for several years. Inferior office chairs may be very soft when they are first seated, but after sitting for a long time, the filled sponges inside will collapse and the air permeability will also be better. Big impact; there is another kind of pure mesh cloth, which has the best air permeability, but the seat cushion of pure mesh cloth has great defects. The service life of general mesh cloth is much shorter than that of mesh + sponge office chairs.

c. The legs of the chair must be stable. The ranking of chair leg stability: five-star foot> arched foot> four feet. Inferior five-star feet also have the risk of the chair wheels falling off. I have personally experienced that I used to buy an office chair for a cheap price. After sitting for a while, the chair feet fell off without knowing why. Fortunately, I found it early, otherwise it would be miserable if it rolls over. .