Lugging a 13-pound water purifier, they knock on each apartment door until they finally get invited inside.

FORBES: Magazine Article

After each sale a EurekaForbes plumber installs the water purifier.

FORBES: Magazine Article

It combines a dehumidifier with a water purifier, to essentially suck the moisture from the air and, instead of discarding it as one normally would, purify it to make it potable.

ENGADGET: Dehumidifier + water purifier = Air2Water potable water device

These days it has managed to persuade Indians to stop boiling their otherwise undrinkable tap water and instead use a now-ubiquitous water purifier known as "Aquaguard, " which has a 75% market share.

FORBES: Magazine Article

Ms Li said she had resorted to keeping a basin of water in the house in the hope it might act as an air purifier.

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I'll list just a few: rear cleanse, front cleanse, soft rear cleanse, oscillating cleanse, water pressure control, nozzle position adjustment, "SoftClose" seat and air purifier.

WSJ: In the Driver's Seat