If you're shopping for a new air purifier or vacuum cleaner, you'll likely come across the term 'HEPA filter'. HEPA stands for 'high efficiency particulate air' [filter], and it's a standard for ...

David Andrade is the business development manager for Google services at CDW•G. An experienced engineer, educator, school district CIO and education strategist, he works with CDW•G coworkers and their ...