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What is "Air Permeability" - Definition & Explanation

The volume of air passing through a fabric under pressure.
The porosity of a fabric as estimated by the ease with which air passes through it. Air permeability measures the warmth of blankets, the air resistance of parachute cloth, the wind resistance of sailcloth, etc. as measured on standard testing equipment.
The permeablity, or the ease with which air passes through material. Air porous ness determines such factors as the wind resistance of sailcloth, the air resistance of parachute cloth, and the effectiveness of different kinds of air filtration media. It is also a measure of warmness, or coolness of a fabric.
The degree to which a fabric, coating or laminate allows air to pass through its construction.

Some other terms

Some more terms:

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A crisp, sheer, lightweight plain-weave fabric, with a medium to high yarn count, made of silk, rayon, nylon, or polyester. The fabric is used primarily in evening and wedding apparel for women. It...
The guayabera is a men's shirt, probably originating in Cuba, that has been popular in Latin America since the late 19th century. It has four pockets (two above and two below) and two vertical lines...
A lightweight, plain weave fabric traditionally of wool or wool blends with a napped, fleecy surface. So named because the texture resembles the breast of an albatross. Usually light in color- used...

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