Glovebox; Precise HEPA-Filtered, Polyethylene, 52.7" W x 31.6" D x 40" H, 2 Glove Ports, 240 V

• Inner and outer transfer chamber doors pivot upward to save space; doors are counterbalanced and equipped with quick-latches
• Work surface: black, chemical-resistant and sealed to the glove box floor
• Electrical duplex: ceiling-mounted with 5 amp maximum circuit load
• Fluorescent lamp, 22 watts, with easy replacement from the top
• Switches for light, blower and innermost interior electrical receptacle
• Test port: HEPA filter integrity
• Main chamber static pressure gauge monitors HEPA filter loading
• Factory leak tested with a mass spectrometer while glove box is pressurized with helium at 5 inches of water gauge
• 0.05 ppm average tracer gas levels or less detected during perimeter scan testing (surpasses ASHRAE 110 standards)
• Airborne particulate cleanliness : measured under positive and negative pressures per ISO 14644-1 test method) exceeds ISO Class 5 conditions (equivalent to Class 100) and achieves ISO Class 3 conditions (equivalent to Class 1) at both minimum and maximum operational airflow volumes
• Vibration: less than 1.5 x 10(-5) inches displacement measured at the work surface at both minimum and maximum airflow volumes

Inlet and Outlet HEPA Filters and Ducting

The inlet and outlet HEPA filters with 99.99% efficiency on 0.3-micron particulates prevent contamination from entering or leaving the glove box chamber. These glove boxes are also designed to return filtered air to the laboratory. There is an optional FilterMate Portable Exhauster that may be installed via a ductwork downstream of the exhaust to adsorb low levels of organic fumes, formaldehyde, or ammonia gases. Glove boxes can also be thimble ducted and exhausted to the outside using a remote-mounted blower.

Built-In Blower with Speed Control

This makes airflow capable from 13 CFM to 100CFM (22.1 m³/hr. to 170 m³/hr.). It pulls air through the inlet HEPA filter and discharges HEPA-filtered air back into the laboratory through the top of the box. This negative pressure operation ensures that all internally contaminated air passes through the exhaust HEPA filter before returning to the laboratory.

Particulate–Free ISO Class 3 and ISO Class 5 Tests

Particulate counts in the work area conform to ISO 14644-1, providing ISO Class 3 conditions at both minimum and maximum operational airflow volumes (35 particulates at 0.5-micron size per cubic meter of air volume). Airborne particulate cleanliness measured under positive and negative pressures per ISO 14644-1 test method exceeds ISO Class 5 conditions (equivalent to Class 100).

Glove Box Construction

Precise HEPA-Filtered Glove Boxes are made of a one-piece molded, medium-density polyethylene liner (shell). This provides a durable surface that is resistant to chemical corrosion and physical damage and simplifies cleaning with its coved interior corners. Located above the glove box shell is a dry-powder epoxy-coated steel superstructure for utility placement. This superstructure also has superior corrosion resistance. Additionally, the glove box contains a laminated safety glass viewing window, 26.4"W x 12.5" H (671 mm x 318 mm) with a powder-coated steel frame and neoprene gasket that provides a tight seal. The window is removable which allows for placement of large equipment inside the glove box. The Precise HEPA-Filtered Box also comes with space-saving acrylic inner and outer transfer chamber doors. These doors pivot upward to save space and are counterbalanced and equipped with quick latches.

Precise HEPA-Filtered Glove Boxes Also Feature:

An interior ceiling-mounted electrical receptacle with 5 amp maximum (115Volt models) or 2 amp maximum (230 Volt models) circuit load that provides power for instrument use within the glove box. The transfer chamber, with internal dimensions of 11" x 12" (279 mm x 305 mm) has an interlocking flat shelf of dry powder-coated epoxy steel to permit objects to stand upright. There is a large internal work area to allow for 13 cubic feet (0.4 m³) of interior space within the main chamber, 22 watt- fluorescent lamp, and control switches for the fluorescent light and innermost interior receptacle.