How-to-buy eBookGeneral Lab

How to Buy a Water Purification System

18 Nov 2025

The operation of all laboratories requires water for use in applications from general cleaning procedures to sensitive analytical techniques. Water quality can significantly impact experimental results, so it is vital to have a reliable laboratory water purification system which provides the required quantity and purity of water for your applications. This expert buying guide offers essential insights into the key factors to consider when purchasing a water purification system.

How to Buy a Water Purification System eBook

How-to-buy ebook

This expert SelectScience guide offers essential insights into the key factors to consider when purchasing a laboratory water purification system – from understanding the grade of water you require (Type 1, Type 2 or Type 3), to the volume of water needed, operational features and budget, as well as insight from your peers about the products they use.

Discover expert tips and advice to help you select the ideal water purification solution tailored to your specific laboratory requirements, whether you are looking for a system for general lab glassware washing or ultrapure water for sensitive applications like PCR and HPLC.

Download this SelectScience How to Buy eBook to find out more about:

  • Types of water impurities and the impact they have on experimental results, including emerging contaminants like PFAS and microplastics
  • Laboratory water quality standards and definitions of Type 1, Type 2 and Type 3 water
  • Examples of water requirements for specific laboratory applications spanning life sciences, analytical research, and general laboratory use
  • Methods of water purification – from reverse osmosis and activated carbon to electrodeionization, UV radiation and filtration techniques
  • Find laboratory water purification system configurations to suit your laboratory
  • Key considerations when choosing a laboratory water purification system, such as the volume of water required, operational features, laboratory space, monitoring and traceability, environmental impact and cost/budget
  • Read product reviews from your peers about the water purification systems that make a difference to their lab work

Resource details:

  • Document type: SelectScience guide
  • Page count: 21
  • Read time: 31.5 mins
  • Edition: 9th

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Water PurificationThere are a number of water purification methods available to remove contamination from laboratory water. These systems include demineralization, reverse osmosis, filtration and ultrafiltration. A combination of methods is sometimes necessary to achieve purified water suitable for use in experiments.FiltrationFiltration and microfiltration are used to separate solids, particulates or large molecules from fluids (liquid or gases) in order to purify the filtrate. Explore a range of filter formats, including filter paper, plates and membranes for your separation needs. While larger particulates may be separated by gravity filtration, smaller particulates may require additional force for timely separation. Microfiltration equipment includes vacuum filters, as well as positive pressure, crossflow and centrifugal filtration devices. Find the best filtration products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Pure WaterPure water is processed to remove significant level of contaminants and is suitable for use in many laboratory applications.Water QualityUltrapure WaterUltrapure water is the highest purity water and contains the lowest levels of organic and inorganic contaminants, particulates and microorganisms.