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Window Frame

Window Type

Pane Area

Wall Thickness

Pane Material

Terra Part #PriceShips in
FramedSingle Pane12 sq. ft.4"Switch Glass 6603-54 68636 Request Quote40-45 Days2
FramelessDouble Pane12 sq. ft.2"Switch Glass 6603-55 73995 Request Quote40-45 Days3
Window Frame
Window Type
Pane Area
Wall Thickness
Pane Material
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Up to 30-day trial periods, free return shipping and on-site training available for qualified equipment.

Request demo from your product specialist or add note to your order or quote request.

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Custom-configured product: Terra will quote.
Custom-configured product: Terra will quote.
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Product Details

  • Stainless steel frame fits flush against wall to eliminate surfaces where particles can collect
  • Double window design (frame fits flush on both sides) includes rounded corners for easy cleaning
  • Ideal for patient privacy in medical facilities, constrcuted of medical grade material
  • Exceeds IEST, ASTM, cGMP, ISO 14644-1 standards
  • Mounting system is designed without exposed hardware or crevices for easy disinfection
  • Standard Size: 48”W x 36”H (custom sizing available); specify wall thickness when ordering
  • Switch glass is operated via a wired switch or WiFi remote control; these laminated panels include a liquid crystal layer that provides 97% light transmission when activated by 65V current
  • Window thickness: 0.5” for both switch glass and conventional tempered glass window
  • Minimum wall thickness: 3.375” (86 mm)
  • Designed to your requirements: just give us your critical dimensions, including wall thickness (pre-engineered models available at accelerated led)
  • For FRP/C-PVC Modular Cleanrooms:
  • When included in a cleanroom order, the wall panels will be pre-cut to accommodate the window pane/frame.
  • Standard placement: 39" above the cleanroom floor
  • Maximum window width: 47"
  • For Steel BioSafe Modular Cleanrooms:
  • When included in a cleanroom order, the wall panels will be pre-cut to accommodate the window pane (the walls serve as the "frame" so stainless steel cleanroom windows are all frameless).
  • Standard placement: 24" above the cleanroom floor
  • Maximum window width: 36"

BioSafe Switch Glass Windows

  • BioSafe cleanroom window Terra Universal's Biosafe® Windows
  • Video demonstrates the switch from opaque glass to clear for privacy or viewing purposes Switch Glass Window
  • Comparison of Biosafe Switch-Glass Window on/off Now you see me, now you don't
BioSafe cleanroom window
Video demonstrates the switch from opaque glass to clear for privacy or viewing purposes

Features & Benefits

Features & Benefits

BioSafe Switch-Glass Privacy Windows

BioSafe® Switch-Glass Privacy Windows

BioSafe Switch-Glass Privacy Windows
  • Versatile laminated panels with tempered-glass outer layers become conventional viewing windows when energized, opaque privacy panels when de-energized
  • Forms a curtain wall to provide patient privacy in healthcare facilities
  • Ideal for on-demand viewing of sensitive or high-security operations inside medical, pharmaceutical, aerospace and other manufacturing operations
  • Available in BioSafe® framed and frameless designs for use in Terra modular cleanrooms or conventional walls of any thickness (more information)
  • Select standard sizes below or specify custom panes in any size or shape

BioSafe Switch-Glass Privacy Windows provide an elegant, energy-saving way to alternate between viewing windows and privacy panels in a host of industrial, research and government applications.

Operated via a wired switch or WiFi remote control, these laminated panels include a liquid crystal layer that provides 97% light transmission when activated by 65V current. When de-energized, the panel switches to a partially opaque appearance that provides full privacy. The dual-side tempered-glass lamination ensures the same characteristics, including smooth, chemical-resistant surfaces, of standard windows, making these panels easy to clean.

  • An on-demand window for high-security commercial operations: ideal for training or customer viewing of operations that would normally remain private
  • Patient privacy in healthcare facilities: Convenient, easy-to-activate alternative to cumbersome curtains
  • Boardrooms, conference rooms, executive offices: adds convenient display/privacy viewing modes
  • Rear-projection display panel for broadcast, entertainment or commercial presentations
  • Forms an interactive video wall with addition of touch sensors
  • Call Terra to discuss your application!
Frameless Window Design (for BioSafe Cleanrooms)
Framed Window Design (for conventional rooms)
  • Glass Type: All laminated, annealed, heat/chemical strengthened, tempered
  • Thickness:
    • Interior Window: 5/16" (8 mm) or 7/16" (11 mm)
    • Door: 9/16" (14 mm)
    • Exterior: 1" (25 mm) insulating glass unit (3/16" tempered outer glass + 3/8" airspace + 7/16" clear laminated glass)
  • Size: Up to 72" x 145" (1,828.6 mm x 3,683 mm)
  • Shape: Any shape, including holes anywhere
  • Environmental Storage: -20°C to 70°C (-4°F to 158°F)
  • Operation: -10°C to 70°C (14°F to 158°F)
  • Electrical *:
    • Voltage: 120VAC/60Hz to power supply; operates on 65VAC ± 5 volts AC
    • Current: less than 20 mA/ft2
    • Power: less than 1 watt/ft2
  • Switching Time: Approx. 100 milliseconds at room temperature
  • Optical Transmission: 75% view angle approx. 140° scattering effectiveness approx. 1 inch
  • Life: Greater than 10 years (indoors); over 3.5 million switches

* For all fixed panel installation, a separate Power Supply shall be provided for each 60 square feet or fraction thereof. Power source of 110VAC, 60Hz electricity must be supplied from a GFI circuit. The power supply should be connected to an accessible standard double junction box connected to ground continuity. Power supply: Panels may be connected in parallel up to 60 square feet total area per single power supply.

The glass uses less than one watt per square foot in the "ON" (clear) state. No electricity is consumed in the "OFF" (translucent) state. The glass can be controlled with either a single or multiple switches or a remote controller.

BioSafe®: Terra's Ultimate Cleanliness Rating

Terra's BioSafe products are designed for the most critical applications: no gaps and crevices where microbes colonize, rounded corners for easy disinfection, won't produce contaminants during sterilization, and exceeds cGMP, IEST, ASTM and ISO 14644-1 requirements.

Continuous Product Improvement

At Terra, we strive to develop and produce the highest quality products for our customers to improve health, safety, performance, and yields. Our product quality is enabled by high-grade manufacturing equipment and processes, 45 years of engineering and application expertise, and our commitment to continuously improve.

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