Hydrofast W100: Countertop Water Purifier with Reverse Osmosis and Heating

The Hydrofast W100 is a countertop water purifier with six-stage reverse osmosis filtration, UV disinfection and remineralization. It can heat water in as little as three seconds and offers eight temperature settings and 15 dispensing volume modes.

Filtration, UV disinfection and remineralization

The device uses six-stage filtration with reverse osmosis to remove impurities, heavy metals and microorganisms from drinking water. The system also provides 24-hour UV disinfection of water in the tank, complementing filtration and helping to limit microorganisms during storage.

Filtration is followed by remineralization and pH adjustment. This step adds back minerals removed during filtration and may affect the taste of the water.

Maintenance includes replacing filtration components. The RO membrane has a stated lifespan of up to 12 months, while the composite filter lasts approximately nine months.

Tank, output and water consumption

The Hydrofast W100 has a 4-liter water tank. Its stated filtration capacity is approximately 380 liters per day, equivalent to about 100 gallons per day.

The purified-to-wastewater ratio is 3:1. In practice, this means one liter of wastewater is produced for every three liters of purified water, which needs to be accounted for during use.

Heating and dispensing

With heating in as little as three seconds, the W100 can prepare water for tea, coffee or cooking without a long wait. Users can choose from eight temperature settings and 15 dispensing volume modes, allowing them to adjust the amount of water to suit a container or task.

Settings are controlled through a color touchscreen. The device also has a child safety lock to help prevent accidental activation.

Design and placement

The W100 has a compact, freestanding design intended for a countertop in a kitchen, office or other room. It is made from BPA-free, food-grade plastic.

The model combines filtration, disinfection and heating in one device. Its selectable temperatures and dispensing volumes offer practical flexibility, though users should also account for regular filter replacement and wastewater production.