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Durapore® Membrane Filter, 0.45 µm

0.45 µm pore size, hydrophilic PVDF, 47 mm membrane



PVDF membrane
plain filter
white filter

Quality Level








>2.6 mL/min-cm2 water flow rate
4 L/min-cm2 air flow rate
85 °C max. temp.

filter diam.

47 mm


125 μm

gravimetric extractables


refractive index

n/D 1.42



pore size

0.45 μm pore size
70 % porosity

bubble point

≥1.55 bar, air with water at 23 °C

shipped in


General description

Filter Code: HVLP
Durapore® membranes provide high flow rates and throughput, low extractables and broad chemical compatibility. Hydrophlic Durapore membrane binds far less protein than nylon, nitrocellulose, or PTFE membranes.

Features & Benefits
- Available in several pore sizes (both hydrophilic and hydrophobic varieties) to suit your application needs
- Durapore membrane filters have very low protein binding to minimize interaction with your sample and maximize recovery
Filter Type: Screen filter


0.45 µm pore size, hydrophilic PVDF, 47 mm membrane

Other Notes

Directions for Use

  • Organism Retention: Microorganism
  • Mode of Action: Filtration (size exclusion)
  • Application: General laboratory filtration
  • Intended Use: Retention or removal of biological contaminants
  • Instructions for Use: Sterilizing filtration of a liquid through a membrane with a 0.2 μm (or smaller) pore size effectively removes biological contaminants, including bacteria, mold and yeast. For the selective retention of larger biological contaminents, liquid filtration through membranes with 0.45 μm (or larger) pore sizes may be used to trap and support microorganism growth for subsequent culture and analysis
  • Storage Statement: Store in dry location
  • Disposal Statement: Dispose of in accordance with applicable federal, state and local regulations.

Legal Information

Durapore is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK Germany


Flash Point F

Not applicable

Flash Point C

Not applicable

Certificate of Analysis

Certificate of Origin

Federico I Brigante et al.
Food chemistry, 312, 126059-126059 (2020-01-04)
Food fraud is perpetrated with increasing frequency along the food chain, triggering the need for new and modern tools to detect food authenticity. Chia, flax and sesame seeds are well known for the good nutritional characteristics of their oils, but...
D M Bernstein et al.
Toxicology and applied pharmacology, 387, 114856-114856 (2019-12-15)
This 90-day repeated-dose inhalation toxicology study of brake-dust (BD) (brakes manufactured with chrysotile) in rats provides a comprehensive understanding of the biokinetics and potential toxicology in the lung and pleura. Exposure was 6 h/d, 5d/wk., 13wks followed by lifetime observation (~20...
Zupeng Chen et al.
Journal of integrative neuroscience, 19(1), 101-109 (2020-04-08)
Medicinal plant breviscapine is shown to exhibit a protective role in tissue damage after cerebral hemorrhage. The effects of breviscapine on neurological deficit score, brain tissue water content, brain pathological tissue changes, blood-brain barrier bidirectional regulation, and inflammatory factors after...
Sara Saeidikhoo et al.
Journal of molecular neuroscience : MN, 70(7), 1153-1163 (2020-03-14)
To date, no certain cure has been found for patients with degenerative cerebellar disease. In this trial, we examined the in vivo and in vitro neuroprotective effects of Sertoli cells (SCs) on alleviating the symptoms of cerebellar ataxia. Testicular cells...
Bo-Wen Wu et al.
IUBMB life, 72(2), 198-213 (2019-08-25)
Atherosclerotic plaque rupture is an important pathophysiologic mechanism of acute coronary syndrome. Emerging microRNAs (miRNAs) have been implicated in the atherosclerotic plaque formation and macrophage autophagy during the development of atherosclerosis (AS). Hence, this study was conducted to explore the...


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