Objective To study the buffering performance of air filled cushions ( AFC) with two different chamber widths. Methods Dynamic impact tests were carried out using five different masse blocks for each type of cushions under different drop heights, and the peak acceleration-static stress curve was obtained. The influence of the drop height on the dynamic characteristics was studied, and the dynamic buffering application features of the two types of cushions were compared. Results For AFCs of the same specification, with increasing the dropping height, the peak acceleration increases gradually; at the same drop height, AFCs with greater chamber widths had smaller impact acceleration. Conclusion Under 1 ~ 2 kPa static stress, the impact acceleration of the AFCs ranges from 80 ~ 170 g. Evaluations by the dynamic impact test to the AFC samples provide guide lines to cushion packaging applications.