About Hound Labs


Hound Labs combines science and technology in novel ways to improve health and wellness. The Hound Labs team believes that the company’s groundbreaking discoveries will pave the way to practical and fair solutions for some of today’s leading public health and safety issues. The company’s first scientific breakthroughs led to the development of ultra-sensitive and accurate breath measurement technology and the flagship product – the HOUND® MARIJUANA BREATHALYZER – and later to development of the HOUND® COVID-19 BREATHALYZER.

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Our Company

Founded in 2014 in Oakland, California, Hound Labs, Inc. is a point-of-care health technology company that has developed ultra-sensitive and portable solutions for the measurement and identification of minute concentrations of particles and pathogens that until now required large-scale and expensive diagnostic equipment. The Company’s point-of-care solutions include the HOUND® MARIJUANA BREATHALYZER, which allows employers and law enforcement to rapidly identify recent marijuana use while on-site, and the HOUND® COVID-19 BREATHALYZER, which captures breath samples on-location for laboratory identification of COVID-19 in breath.


The Company’s pioneering breath measurement technology led to the creation of the ultra-sensitive HOUND MARIJUANA BREATHALYZER which is 1 billion times more sensitive than today’s alcohol breathalyzers. The HOUND MARIJUANA BREATHALYZER provides rapid on-site results, accurately identifying recent marijuana use by measuring THC in breath – where it only resides for a few hours after smoking. Current marijuana tests of oral fluid, blood, urine, and hair may result in positive samples for days, weeks, or months – long after impairment subsides. A better way to determine very recent marijuana is to use the HOUND MARIJUANA BREATHALYZER to test breath, where the active ingredient in marijuana (THC or delta-9-tetrahydrocannabinol) remains for only a few hours, correlating with the peak impairment window. The HOUND MARIJUANA BREATHALYZER allows law enforcement and employers to balance SAFETY + FAIRNESS™ without unjustly accusing individuals who legally and responsibly use cannabis.


In early 2020 when SARS-CoV-2 began spreading around the world, the Hound Labs scientific team indicated that the ultra-sensitive Hound Labs breath technology could be adapted to measure COVID-19 in breath. The Company received IRB approval for research and then made rapid changes to the HOUND MARIJUANA BREATHALYZER. Hound Labs began using the HOUND COVID-19 BREATHALYZER in May 2020 to capture COVID-19 in the breath samples of patients. The Company remains optimistic that the Hound Labs breath technology will be useful to help unravel some of the mysteries surrounding COVID-19, including whether the presence of SARS-CoV-2 in breath helps to identify “super spreaders.” Results from ongoing research indicate the value in conducting large-scale studies.