Our Mission

Our goal is to not only develop cutting edge science and technology
to address impaired driving, but also to champion the national
dialogue about marijuana-impaired driving.

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About Us

The Hound® marijuana breathalyzer solves the fundamental safety problem associated with marijuana legalization: How to objectively determine if someone recently used marijuana and therefore could be impaired while driving or working.  Hound Labs, Inc. has created the world’s first field-tested marijuana breathalyzer to measure recent marijuana use in breath. Working with senior scientists, law enforcement, and researchers, the Company developed a patent-pending technology using a combination of chemistry, physics, and engineering. This novel approach resulted in the incredibly efficient and responsive technology required to measure THC (the psychoactive ingredient in marijuana) in breath – a method that is more than one million times more sensitive than the technologies used today to measure alcohol in breath.

The issue of impairment is complicated because there is no accurate device on the market today to measure recent marijuana use. Although measuring THC in blood, urine, or saliva is relatively easy, these types of testing do not distinguish recent use from use days or weeks earlier. However, THC can only be measured in breath for a few hours after smoking and then it disappears. This time period is critically important because it correlates with the window of impairment identified by researchers. The Hound device measures recently used THC in breath, helping law enforcement and employers to ensure safety while also ensuring that responsible users who smoked days or weeks prior to testing will not be arrested or fired for merely testing THC positive.

“Law enforcement officers around the country are anxiously waiting on the day when a portable weed breathalyzer becomes reality, so they can stop relying on the scientifically dubious roadside munchies test. Thankfully, one Californian company (Hound Labs) claims to be almost there.”
~ Gizmodo

"Law enforcement officers around the country are anxiously waiting on the day when a portable weed breathalyzer becomes reality, so they can stop relying on the scientifically dubious roadside munchies test. Thankfully, one Californian company (Hound Labs) claims to be almost there." ~ Gizmodo

“Our ability to measure THC in breath really should shift the national dialogue from one about simply detecting if THC is in someone’s body to a conversation where standards can be developed that reflect actual impairment,” said Lynn.
~ The Toronto Sun

"Our ability to measure THC in breath really should shift the national dialogue from one about simply detecting if THC is in someone's body to a conversation where standards can be developed that reflect actual impairment," said Lynn. ~ The Toronto Sun

“​For now, police use blood or urine tests to prove that a driver had THC in his system, but those can take days, and can’t assess how recently a person used marijuana. Hound Labs says it has developed a new way to detect THC from just one or two breaths.”​
~ Popular Science

"​For now, police use blood or urine tests to prove that a driver had THC in his system, but those can take days, and can’t assess how recently a person used marijuana. Hound Labs says it has developed a new way to detect THC from just one or two breaths."​ ~ Popular Science

“Other companies have touted the ability to detect marijuana through the breath in products currently in testing, but Mr. Lynn says his product will be the first to give precise measurements in picograms — measurements of one trillionth of a gram — that can be used to determine a person’s current level of intoxication from smoking marijuana.”
~ The Washington Times

"Other companies have touted the ability to detect marijuana through the breath in products currently in testing, but Mr. Lynn says his product will be the first to give precise measurements in picograms — measurements of one trillionth of a gram — that can be used to determine a person’s current level of intoxication from smoking marijuana." ~ The Washington Times

“Lynn may be uniquely poised to become a leader in the new testing field: The practicing emergency medicine physician, trauma center teacher, and clinical faculty member at UCSF spent ten years in the venture capital field specializing in medical devices and biotechnology.”
~ SFist

"Lynn may be uniquely poised to become a leader in the new testing field: The practicing emergency medicine physician, trauma center teacher, and clinical faculty member at UCSF spent ten years in the venture capital field specializing in medical devices and biotechnology." ~ SFist