A clean room is a very controlled environment that has low levels of pollutants. This type of environment is also known as a white room, or sterile room. These rooms are free from dust, aerosol particles, chemical vapors and airborne microbes. Manufacturing and scientific research labs can be maintained with the proper supplies. Among these necessary supplies are clean room swabs. These swabs are sealed, and made out of ultra polyester or processed foam. Each swab is fully cleaned, and when using these swabs, there will be no residue left behind. With the variety of clean room swabs available, there is guaranteed to be something for every place of business. No particle generation or germs can be present of the tips of these swabs , as they are safely sealed. Criti-clean swabs are some of the most popular,as they offer a tip that is easily used for sampling or cleaning many applications. The ultra washed virgin polyester is great for cleaning particles from optic or optic assemblies. Some cleaning products require acetone, MEK, NMP, and Kyzen, and Criti-clean swabs are perfect for this job. These swabs are beneficial when cleaning fine operating assemblies. There are different handle lengths to choose from when ordering. The largest handle size is 6 inches, and the shortest is 3 inches. The head sizes of the clean room swabs also vary between 1/16 of an inch to 1/4 of an inch. Each package contains a different number of items, depending on the type that you need. Some contain 50 swabs, or may contain as much as 500 swabs. Each swab is manufactured in the United States of America, in a Class 10 sterile environment. The ESD foam tipped swabs do not contain any metals, silicone, or carbon, which makes them the best for cleaning sensitive components.