Needle punched felt is soft and allows air to pass through very well, while at the same time trapping particulates like dust. The material can also be made stiffer by heating it together with melt fiber in order to mold it, for example.
It’s resistance to e.g. water, heat and various substances can be affected by choosing the right type of fiber during manufacturing.
The material is thicker than spunbond and cheaper than fabric.
By using waste material, from your own or external manufacturing, the needle punched felt can be manufactured in a very environmentally-friendly and cost-effective manner. A large proportion of polyester-based needle punched felt is produced from, for example, 100% recycled PET bottles.
Furniture & beds: Needle punched felt is used as a dust cover, around springs and on the back/underside of furniture and beds. It is often a cheaper alternative than using fabric.