HEPA Vacuum, NPFU & PHEAF Testing

Standards or procedures are available for in-place leakage testing of HEPA vacuums, also known as Negative Pressure Filtration Units (NPFU) or Portable High Efficiency Air Filtration equipment (PHEAF).

Several standards organizations are developing industry-wide test standards, though currently none are released.

A few procedures are available that may be adapted to vacuum cleaner testing in similar industries or applications.

Links for these are posted below: