Foam-Covered Cotton Bud Cleanroom Swabs

High-sorbency combo swabs for gentle cleaning and tight spaces.

Foam-covered cotton bud swabs pair open-cell polyurethane foam with an internal USP-grade cotton core to deliver a soft, non-abrasive swab with boosted absorbency. The foam exterior provides a fiber-free contact surface and cushioning for delicate parts, while the cotton bud adds support and extra sorption—so the swab picks up liquids and residues quickly without scratching.

These combo swabs are ideal for cleaning surfaces and hard-to-reach or recessed areas where wipes can’t reach. They’re commonly used for solvent cleaning with IPA or acetone, applying/removing lubricants and solutions, and wiping small components or intersecting joints in cleanrooms and controlled labs. Many styles are made with ~100 PPI foam for strong liquid retention and controlled release during cleaning.

Browse foam-covered cotton bud swabs below to choose the right head size and handle style for gentle, high-absorbency cleaning in your controlled environment.