3306.20.00.00 - Yarn used to clean between the teeth (dental floss)

This HTS classification, 3306.20.00.00, specifically covers yarn designed and marketed for cleaning between the teeth. Commonly known as dental floss, these products are typically made from synthetic filaments, often nylon or PTFE, coated with wax or other agents to enhance their ease of use and effectiveness in removing plaque and food particles from interdental spaces. The key characteristic for classification under this heading is the intended use for interdental cleaning, distinguishing it from other forms of yarn or string.

It is important to differentiate this category from its siblings within heading 3306. While 3306.10.00.00 encompasses dentifrices, such as toothpaste and tooth powders, and 3306.90.00.00 covers "other" preparations for oral or dental hygiene not otherwise specified, 3306.20.00.00 is exclusively dedicated to dental floss. This means that any product primarily intended for brushing teeth (dentifrices) or any other oral hygiene product not fitting the specific description of dental floss or dentifrices will fall under the respective sibling categories.

As this is a leaf node within the HTS, there are no further subcategories. Therefore, classification within 3306.20.00.00 is determined by the product's primary function as interdental cleaning yarn. The presentation of the product, such as being in individual retail packages, is a common characteristic but the defining factor remains its identity and purpose as dental floss.