Klercide Low Residue Quat Unit Dose Concentrate is a blend of quaternary ammonium compound and deionised water. The product is effective even at low concentrations, with a very low residue profile, making it ideal for daily use in all grades of cleanrooms including high grade areas where residue control is a consideration. It is 0.2 micron filtered and sterile filled under Grade A (ISO Class 5) unidirectional air-flow in a Grade B (ISO Class 5) cleanroom. It is provided double bagged in packs of five.