Packard Inc. CEO Tom Campbell said he would give 2 percent of proceeds from sales of certain U.S.-made products to a charity set up to help victims of the April 15 bombing.  

Organizers are offering an early bird special for people interested in attending Westec. 

 More than 50 contractors have been given safety awards from the National Air Duct Cleaners Association.  

 The Air Conditioning Contractors of America is seeking public comment on the newest version of its residential equipment selection manual.  

 Another major change is the requirement that all homes install carbon monoxide detectors.  

 Esab has been given a Gold Stevie Award for turning around its sales in 2013.  

 The decline was not completely unexpected, the association said, since March 2012 sales were unusually high. 

 Officials with National Association of Home Builders and Wells Fargo said an estimated 73.7 percent of new and existing homes sold between January and April this year were within reach of families earning the nation’s median annual income.  

 The North American Technician Excellence testing will take place 1 p.m. May 21.  

 The April 8-10 event at New China International Exhibition Center in Beijing brought 36,897 attendees — 11 percent more than last year.