The air cushion comb is commonly made with wood or bamboo, do you know why is there a hole in the cushion of massage hair brush?
This air cushion is to provide ventilation and to aid in drainage after the brush has been washed, air can circulate underneath and dry out the rubber Additionally it helps to prevent any bacterial growth that could occur with pooling water on the inside of the brush. If there was not a hole, the cushion would trap the moisture, and eventually ruin the brush. Meanwhile the hole keeps air pressure balanced by air hole.
In addition to these effects, it also can provide comfortable massage enjoyment. It is reduced the static electricity generated by friction. There is a high-elastic air cushion on the pad, which is very flexible when combing hair. Whether it is up and down, or left and right, it will not pull hair, can avoid hair knot, hair break, etc.