EPISODE 236 -Tony Havics, PE, CIH, CHMM Wane Baker, PE, CIH Tom Yacobellis

Particles & Aerosol Physics - More than Meets the Eye & Field Testing Air Filtration Devices - This week we will discuss the issues that make performing field tests of air filtration devices and HEPA vacuums such a challenge. Tony Havics, PE, CIH,CHMM Wane Baker, PE, CIH and Tom Yacobellis are coming on to discuss the reason particles behave the way they do, the challenges in determining how well we are capturing these particles and the limitations of our instruments and equipment when it comes to particle capture and measurement. The Air Filtration Device Standards Development Committee (AFD) of the Indoor Environmental Standards Organization (IESO) will be continuing its research efforts by conducting a three-day testing program of HEPA-filtered negative air type or collection machines in mid March. The purpose of this event is to gather additional data to complete the development of an ANSI/IESO Standard for the field evaluation of portable HEPA-equipped air filtration devices. The committee is seeking multi-channel laser particle counters from various manufacturers and the assistance of manufacturers' representatives who are proficient in their use. We hope to help them publicize what they are doing and help listeners LEARN MORE about particles, particulate and aerosol physics this week on IAQ Radio.