Tyvek is a nonwoven product consisting of spun bond olefin fiber. Nonwoven melt-blown fabrics are porous. The backing of the turf is a combination of woven and nonwoven polypropylene. Nonwoven materials are attached to a woven backing (scrim). Nonwoven textiles are manufactured by the bonding of fibres to make fabric. Nonwoven materials are either felted or membrane. Air-laid paper is a textile-like material categorized as a nonwoven fabric made from fluff pulp. Air-laid paper is a textile-like material categorized as a nonwoven fabric made from wood pulp. The bag is made up of durable water repellent nonwoven fabric. Surgical masks are made of a nonwoven fabric created using a melt blowing process. Modacrylics are also used in fleece, knit-pile fabric backings, and nonwoven fabrics. It typically consists of a face fabric with nonwoven or foam backing. Mostly nonwoven and woven fabrics are used in it. Some nonwoven fabrics are used similarly. Typically, a certain percentage of recycled fabrics and oil-based materials are used in nonwoven fabrics.