P&G sold Pur to Helen of Troy in January 2012 for an undisclosed amount. P&G maintained ownership of the products sold in various countries as a form of humanitarian aid under the Children's Safe Drinking Water program. These no longer use the Pur brand name. Pur makes an extended range of water filtration products.

Jay Klein PUR Gum is a brand of aspartame-free gum produced by The PUR Company Inc. and founded in 2010 by Jay Klein in Toronto, Ontario, Canada.

Brian Sullivan We've Made History 1986 - PUR, formerly Recovery Engineering, was founded by 24-year-old Brian Sullivan, a Harvard economics graduate.

PUR maintains the highest standards for their products. For over 30 years, all PUR filters have undergone rigorous testing to ensure U.S. standards for safety are met. In fact, PUR's faucet filtration systems are certified by NSF and WQA for their contamination reduction.

The best water filters: Reviews & Recommendations

• Best overall: Brita Large Water Filter Pitcher.
• Best pitcher: Brita Large Stream Filter as You Pour.
• Best faucet: PUR PLUS Faucet Mount Water Filtration System.
• Best water bottle: LifeStraw Go Series.
• Best backpacking: Sawyer Products SP129 Squeeze Water Filtration System.

To ensure maximum contaminant removal, replace your PUR filter after 100 gallons of use or every 3 months. If your Filter Change Light flashes red, it's time for a new filter.

Then read up on our interview with Tianchen Liu, franchise owner of Pür & Simple - 708667 NB Ltd., located in Fredericton, NB, Canada.

Polyurethane rigid foam (or PUR for short) has been used in construction since the 1960s as a high-performance insulation material. Continued technical developments in Europe and the US have led to the next product generation which is often called polyisocyanurate or rigid polyiso foam (or PIR for short).

Brita surpasses Pur in overall water taste, filter lifespan, filter replacement cost, and pitcher options. However, the whole point of a water filter pitcher is to actually remove contaminants, and the Pur filters reduce and remove more chemicals from the water than the Brita pitchers do.

When was the water filter invented? In the third century B.C., Hippocrates invented the so-called Hippocratic sleeve, which consisted of a simple cloth back filter. Just pour boiled water through here, and you'd have a supply with fewer contaminants. 1671 (A.D.)

Brita surpasses Pur in overall water taste, filter lifespan, filter replacement cost, and pitcher options. However, the whole point of a water filter pitcher is to actually remove contaminants, and the Pur filters reduce and remove more chemicals from the water than the Brita pitchers do.

Home water filtration offers better quality water than bottled water. Home water filtration is 1/10th the cost of bottled. Home water filtration is far more convenient, offering “Pure water on tap.” Home water filtration is virtually pollution free.