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2. Air purifier - Wikipedia

   en.wikipedia.org/wiki/Air_purifier

   Air purifier. An air purifier or air cleaner is a device which removes contaminants from the air in a room to improve indoor air quality. These devices are commonly marketed as being beneficial to allergy sufferers and asthmatics, and at reducing or eliminating second-hand tobacco smoke .

3. Drinking water quality in the United States - Wikipedia

   en.wikipedia.org/wiki/Drinking_water_quality_in...

   EPA poster explaining public water systems and Consumer Confidence Reports. The SDWA requires EPA to issue federal regulations for public water systems. [15] [16] There are no federal regulations covering private drinking water wells, although some state and local governments have issued rules for these wells.

4. Air ioniser - Wikipedia

   en.wikipedia.org/wiki/Air_ioniser

   An air ioniser (or negative ion generator or Chizhevsky's chandelier) is a device that uses high voltage to ionise (electrically charge) air molecules. Negative ions, or anions, are particles with one or more extra electrons, conferring a net negative charge to the particle. Cations are positive ions missing one or more electrons, resulting in ...

5. 9 Best Air Purifiers of 2023, According to Testing - AOL

   www.aol.com/lifestyle/9-best-air-purifiers-2023...

   The triple-duty machine is a heater, fan and air purifier all in one. Using a True HEPA filter, this Dyson air purifier claims to clear up to 99.97% of airborne pollutants, including smoke from ...

6. Do Air Purifiers Actually Work? Here's What Experts Say - AOL

   www.aol.com/air-purifiers-actually-heres-experts...

   Every model included in the Good Housekeeping Institute's rigorously tested guide to the best air purifiers you can buy has a true HEPA filter. The air purifier's fan draws air into the filter and ...

7. Consumer Reports: Best upright vacuums of 2022 - AOL

   www.aol.com/news/consumer-reports-best-upright...

   Our testers found that this vacuum handles well, but it’s noisier than other upright vacuums. In our member survey, Shark earns good marks for both predicted reliability and owner satisfaction ...