The 10,000-Crank Test

The website challenged DayZero to pull 5 of our hand-cranked generator water boxes off the shelf and turn the crank 10,000 times on each one.

What Happened to our UV-Box?

DayZero has dropped the UV-Box product from its price list. After further research we concluded that we couldn’t guarantee that the UV-C dosage was adequate for disinfecting objects of COVID-19.

Urban Prepping

Preparing for an emergency or natural disaster in an urban environment is going to be radically different than in a suburban or rural setting.  New York City has a density of about 28,000 people per square mile.  Los Angeles has over 7,000 and even Portland, OR is over 4,000.  Compare that to Montana at just […]

Virus Destroying 10 Minute Smartphone Sanitizer

By David Conklin Hammacher Schlemmer’s catalog arrived in the mail a few days ago. I always enjoy leafing through their catalog, and my attention was caught by the product featured on the cover: a UV cellphone sanitizer (“The Virus Destroying 10 Minute Smartphone Sanitizer”, UH-95371, $99.95, details on page 82). Unfortunately, I was unable to […]

How Much UV-C Does It Take to Disinfect SARS-CoV-2?

by Dave Conklin SARS-CoV-2 is the virus which is causing the Covid-19 pandemic. As far as I know, no one has yet determined, by direct measurement, how much UV-C radiation is required to deactivate the SARS-CoV-2 virus. But two recent publications draw inferences about SARS-CoV-2 sensitivity to UV-C from studies of other viruses. A March […]

Earthquake Preparedness

According to Nature there is about a 1 in 3 chance (or higher) that – when a major earthquake strikes the Pacific Northwest (specifically Portland) in what’s called the Cascadia Subduction Zone within the next 50 years. When the next major quake happens it threatens to be in the 8-9 point range on the Richter […]