NEW YORK ASBESTOS ABATEMENT REGULATIONS Definitions (continued).

HEPA filter. "HEPA filter" shall mean a high efficiency particulate air filter capable of trapping and retaining 99.97 percent of particles (asbestos fibers) greater than 0.3 micrometers mass median aerodynamic equivalent diameter.

HEPA vacuum equipment. "HEPA vacuum equipment" shall mean vacuuming equipment with a HEPA filter.

Holding area. "Holding area" shall mean a chamber in the equipment decontamination enclosure located between the washroom and an uncontaminated area.

Homogeneous work area. "Homogeneous work area" shall mean a portion of the work area which contains one type of asbestos-containing material and/or where one type of abatement is used.