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2. Ultrapure water - Wikipedia

   en.wikipedia.org/wiki/Ultrapure_water

   Ultrapure water (UPW), high-purity water or highly purified water (HPW) is water that has been purified to uncommonly stringent specifications. Ultrapure water is a term commonly used in manufacturing to emphasize the fact that the water is treated to the highest levels of purity for all contaminant types, including: organic and inorganic compounds; dissolved and particulate matter; volatile ...

3. Solar water disinfection - Wikipedia

   en.wikipedia.org/wiki/Solar_water_disinfection

   Solar thermal water disinfection uses heat from the sun to heat water to 70–100 °C for a short period of time. A number of approaches exist. Solar heat collectors can have lenses in front of them, or use reflectors. They may also use varying levels of insulation or glazing. In addition, some solar thermal water disinfection processes are ...

4. Electromagnetic absorption by water - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_absorption...

   Overview. The water molecule, in the gaseous state, has three types of transition that can give rise to absorption of electromagnetic radiation: Rotational transitions, in which the molecule gains a quantum of rotational energy. Atmospheric water vapour at ambient temperature and pressure gives rise to absorption in the far-infrared region of ...

5. These 6 fancy dermatologist-recommended sunscreens are ...

   www.aol.com/lifestyle/these-6-fancy...

   Natura Bissé Diamond Luminous UV Defense Light Tinted Fluid SPF 40. $98 $130. Code: CHEERS. See at Dermstore. See 5 more. Fortunately for you, we noticed that many of these fancier SPF products ...

6. This magical beach blanket that repels sand and water is on ...

   www.aol.com/lifestyle/amazons-no-1-best-selling...

   It's sand-proof and water-resistant, plus it doesn't get picked up by the wind. It's made of 210 polyester, which repels water even better than an umbrella, and easily shakes off any sand that ...

7. Durable water repellent - Wikipedia

   en.wikipedia.org/wiki/Durable_water_repellent

   Durable water repellent, or DWR, is a coating added to fabrics at the factory to make them water-resistant ( hydrophobic ). Most factory-applied treatments are fluoropolymer based; these applications are quite thin and not always effective. Durable water repellents are commonly used in conjunction with waterproof breathable fabrics such as Gore ...