Authentic Wein® Air Purifiers Can Help Now that Covid-19 is being recognized as a potential airborne hazard- with micro droplets under 5 microns in size that can remain airborne and travel great distances- you must not... read more >
American Industrial Hygiene Conference & Expo 2004 Droplet Deposition In Industrial Duct Bends T. Peters, D. Leith, University of North Carolina, Chapel Hill, NC. A study of droplet deposition in industrial duct bends is presented.... read more >
Popular Photography Phototronics Finally! Wein develops a replacement for mercury cells. James Bailey No subject that I’ve written about lo these many years has raised the hackles of so many readers of this... read more >