Thermo Scientific ART 1000 Barrier Tip Racked, Pre-Sterile, Low Retention Thermo Scientific's Aerosol Resistant Tip (ART) is a self-sealing filter tip that protects pipettors from crossover contamination and guarantees 100% protection against aerosol and liquid contamination. Supplied pre-sterilised, Thermo Scientific ART tips are available in racks, as the environmentally friendly Reload System which reduces plastic used. Self-sealing barrier traps contaminating aerosols and liquids Low Retention option available Reload System is stackable and can be used one-handed Certified RNase, DNase, and Pyrogen free