Filtered Pipette Tips | Aerosol Resistant Filter Tips | Rainin
filtered pipette tips

Filtered Pipette Tips

Prevent Aerosol Contamination

A filtered pipette tip is certified free of DNA, RNase, DNase, endotoxin, protein, protease, ATP and PCR inhibitors. Optimized filters made from sintered high-density polyethylene granules trap aerosols and protect pipettes from contamination. Filter pore size allows airflow, preventing backpressure and preserving pipetting accuracy. Filtered BioClean Ultra™ pipette tips from Rainin are available in both LTS and UNV (universal fit).

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Advantages of Filtered Pipette Tips

contamination free pipette tips

Certified Contamination-Free

The filters are machine-loaded to assure that tips remain completely untouched during manufacturing and packaging. They are certified free of RNase, DNase, DNA, and pyrogen contamination. In addition, all filter tips are sterilized after packaging as added protection for biological samples.

Aerosol-Resistant Filter Tips

"Torturous Path" Aerosol Barrier

Rainin aerosol-resistant tip filters are manufactured from sintered polyethylene, which produces a "torturous path" aerosol barrier with an average pore size of 40 microns. This pore size is considered “less restrictive” and doesn’t detectably increase resistance or affect pipetting accuracy.

FIltered pipette tips

Protect Against Cross-Contamination

Unlike other filter types that contain additives that can inhibit enzymatic reactions, Rainin filter tips are made from pure virgin sintered polyethylene. Hydrophobic polyethylene particles prevent aerosols and liquids from being aspirated into the body of the pipette.

filtered pipette tips

Finepoint Tips Taper to a Fine Orifice Diameter

Their slender design, in combination with thin, flexible walls, creates an exceptionally supple tip that assists in sample touch-off. The narrow orifice aperture and thin wall surrounding the orifice provides minimal surface area for residual sample to adhere to during sample dispensing. FinePoint tips discharge completely for optimal pipetting accuracy.


LTS LiteTouch System Product Brochure
By virtually eliminating friction, the Rainin LiteTouch System dramatically reduces the amount of force required to load and eject tips.
Rainin LR Low Rentention Tips Brochure
Learn how Rainin LR low retention tips improve pipetting accuracy by minimizing residual volume, particularly when transferring liquids such as viscou...
bioclean pipette tips datasheet
For successful experiments, pipette tips must be completely inert and not interfere with samples. Rainin BioClean tips are guaranteed to be free of RN...
Zero Contamination in Rainin Pipette Tips
A paper published in Science shows that by using certain polypropylene tips and tubes, experiments can be inhibited and results will be adversely affe...
sterile vs non sterile pipette tips
This white paper proves how there is essentially zero possibility for any Rainin pipette tip to contribute contaminants to customer samples.
Comparative Carbon Footprints Terrarack
METTLER TOLEDO Rainin is the pioneer of high purity ‘BioClean’ tips, creating a range of super-clean tips which are certified to be free of biological...
Counteracting Liquid Retention in Tips Benefits of Using Low Retention Tips
This white paper shows that Rainin LR tips are capable of “normalizing” the performance of liquids with diverse compositions and physical properties d...
How To Choose a Good Pipette Tip
Download an introduction and detailed advice on what to look for when choosing a good pipette tip, i.e., a tip that does not influence the experiment'...
aerosol-resistant pipette tips
Rainin aerosol-resistant pipette tips with filters were tested by an independent testing laboratory and proven to prevent DNA aerosol contamination.
Trace Organic and Inorganic Materials in pipette tips
To confirm that tips manufactured by Rainin do not provide sufficient quantities of contaminating inhibitors, a number of experiments were performed b...
Testing for Contaminants in Pipette Tips
To make sure that common reactions such as PCR and qPCR are not affected by these factors, Rainin regularly performs several tests on each lot of the...
Why Rainin Does Not Test for RNA
It may appear curious to some customers that Rainin tests its tips for human DNA contamination, but conducts no such tests for contaminating RNA.
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Expert Service – Tailored to Fit Your Pipetting Needs

METTLER TOLEDO supports and services your pipettes through their entire life-cycle, from good pipetting techniques to preventive maintenance and calibration to equipment repair.

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More Information

BioClean Quality

Rainin filtered tips are rigorously tested and certified to be free of:

  • DNA
  • DNase
  • RNase
  • Pyrogen
  • ATP
  • PCR Inhibitors