According to the Institute of Environmental Science and Technology, (IEST) with regard to performance, there are 6 types – A, B, C, D, E & F. Each has its own distinct characteristics as shown by chart 1 below. * Test on encapsulated filter Note: Either of the two test methods or an alternative method may… Read more about How Many Types of HEPA Filters Are There?

Webster’s defines hospitality as hospitable treatment, reception or disposition. The root of the word comes from hospital, the Latin root meaning “guest room” however, the hospitality industry is increasingly under pressure to discriminate (define this as a little less hospitable) when it comes to accommodating guests who smoke, have pets, have mores of another culture,… Read more about Providing An Air Of Hospitality

“…every child and school employee should have the right to an environmentally safe and healthy school that is clean and in good repair.” — American Public Health Association The Problems The statistics are a bit unnerving; 53 million school children and 6 million teachers, administrators and others walking into 120,000 school buildings every day –… Read more about Air Filtration for Schools