Many critical environments would not be possible without High Efficiency Particulate Air or HEPA Filters. HEPA filtration, invented during the second world war, removes up to 99.999% of airborne particulate. Without HEPA filtration today's modern clean rooms, operating suites and other sterile environments would not be possible.

Depending upon a variety of engineering, use and environmental factors most filters will last 2 - 10+ years. Each year the filters should be professionally evaluated. As the filters load performance will fall off and adjustments should be made to the mechancial system, where possible, to compensate. Proper care improves performance and adds to filter life.

It is common to find small leaks and/or broken seals from year to year. We employ the ATI TDA2G Aerosol Photometer to quickly pinpoint leaks so they can be repaired. This instrument accurate from 0.0001% to 100%. All leaks are recorded during the evalution, documented in the service report and, where possible, repaired.

ATI TDA2G

A quality Laboratory Ventilation Management program includes establishing a system to manage your HEPA filter population. Your commissioning report is an excellent beginning. Proper management and testing delivers dividends with peace of mind, ease of maintenance and prolonged filter lfe.