Our mosquito netting has about 15% of the density of a bed sheet so that if you threw a bucket of dirt on a white curtain and hung it, you would only see about 15% of the dirt. The air flow is about 75% because of the 15% density and because it is not stretched like a drum. When blown by the wind, it cups a bit and deflects some of the wind. In fact, our curtains act as a limited rain barrier for the same reasons. The driving rain tends to cup and slide down the curtain which is why the curtains are popular with restaurants. Want to see photos of all fabrics & colors?

No-see-um netting mesh is really a remarkable fabric that is soft and elegant at 800 holes per square inch. It derives its name NOT from any visual qualities, rather, it shields against a tiny little nasty midge fly unaffectionately called a "no-see-um". No-see-ums flies are commonly found along the coast, lake regions and marshes. If you have never heard of a "no-see-um," you probably don't have them and should probably use the mosquito netting. It is a gorgeous material, but because it is denser, it needs to be well secured as it will catch the wind more. Interested in a little geeky optical science?