Tag Archive: Dyson

The scourge that is electric hand dryers

Photo credit: Travis Wise licensed under CC BY 2.0

Llyod Alter, the design editor at Treehugger, recently asked whether Dyson electric hand dryers were “the world’s worst design object.” In his post, Alter quotes Mark Lamster, architecture critic for the Dallas News, who called the Dyson Airblade “the most abhorrent work of design in recent memory.”  What drove Lamster to this conclusion?  Noise was first and foremost. Said Lamster:

For starters, the Dyson Airblade is deafening. Running a Dyson Airblade is the aural equivalent of standing on an airport runway while a 747 throttles up for takeoff. That’s because the machine works not by using heat, but by blowing air at such velocity that it “scrapes” the water off your hands. (This is its supposed advantage over conventional, hot-air hand dryers, which are also awful.)

Alter eventually disagrees with Lamster after doing an analysis that compares the global warming burden of electric hand dryers versus paper towels. Not surprisingly, the hand dryer over its life time produces a smaller burden than using paper towels over the same period. Of course, we think one should also weigh the consequences of having “aerosolized fecal matter” spewed about, but maybe we are just a bit too sensitive.

So, is the Dyson the world’s worst design object? We say no.  Why?  Because that title belongs to the Xlerator, our hand drying nemesis.

Everyday noise: Hand dryers

In For drying out loud: Noisy hand dryers cause issues for some, the Dallas Morning News addresses one of our personal nemeses, hand dryers in public restrooms.  While the noise generated by a hand dryer may be merely annoying for most, they are a source of distress for people who suffer from tinnitus, hyperacusis, and sensory disorders such as autism.  The article discusses an Oregon State senator’s proposed legislation to limit public hand dryers to 84 decibels, “because louder models are ‘extraordinarily obnoxious and disruptive’ to people with sensory disorders, including [the legislator’s] autistic son, who cries and covers his ears when he’s near loud hand dryers.”

The problem is that the newer, more robust hand dryers are also louder:

[S]ome hearing experts have already made up their minds on high-decibel models like the Excel Xlerator and the Dyson Airblade.

“They’re a real cause for concern,” said Dr. Deanna Meinke, an audiologist and a professor at the University of Northern Colorado. “It’s just one more unnecessary source that adds to our cumulative exposure to noise.”

And there’s the problem in a nutshell.  Hand dryers are sold as an ecologically sound alternative to paper towels, but one wonders if the real reason for their use the cost savings associated with no longer purchasing paper towels and the less frequent need to remove trash/clean restrooms.  Sadly, no one puts a price on the discomfort (if not damage) suffered by those affected by loud hand dryers, which, unsurprisingly, are often placed in small tiled spaces.  As Dr. Meinke noted, it’s just one more unnecessary source of noise.

Thanks to Bryan Pollard for the link.  Bryan is the founder and president of Hyperacusis Research Limited, a non-profit charity dedicated to funding research on what causes hyperacusis with the goal of developing effective treatments.