★★★★★
"We spec'd Casper for every conference room on our floor. Client data is visible to anyone walking past in a glass-wall office — Casper fixed that without turning our office into a bunker."
Optical screen privacy for law firmsfinancial officeshealthcare suitestech companiesconference rooms .
Philadelphia's certified Casper installer — optical screen privacy for glass-walled offices without frosting, blinds, or compromising your open-plan aesthetic.

Casper Cloaking Film is proprietary optical technology from Designtex, a Steelcase brand. Applied to the interior surface of glass partitions, it targets the light wavelengths emitted by LED and LCD displays so screens appear completely black from outside the room while the glass itself stays clear.
That matters in Philadelphia's glass-wall office culture. Law firms along Broad Street, financial services offices in Center City, Penn Medicine and Jefferson Health suites, University City tech spinoffs, and Navy Yard tenants all need to protect on-screen data without replacing their open, collaborative interiors with blinds or frosted glass.
Philadelphia's certified Casper installer for glass-wall screen privacy

Philadelphia's best firms run on glass-wall culture. The problem is that glass doesn't stop data from being visible: client files in a Broad Street law firm, financial models in a Center City private equity office, patient charts in a healthcare suite, or product roadmaps inside a University City tech company. Casper solves the screen-privacy problem without turning the room into a frosted box.
Casper is a specialized interior office film, not a general-purpose privacy tint. For all-view privacy on glass partitions, Window Film Philadelphia also installs decorative and frosted window film when the goal is visual screening rather than screen cloaking.
Get a free film assessment →Casper Cloaking Film is installed by Window Film Philadelphia for commercial glass partitions, conference rooms, boardrooms, healthcare suites, coworking interiors, and branded office environments that need screen privacy without closing off the space.
The TechnologyCasper is built around selective optical filtration. Instead of blurring or frosting the glass, it targets the specific wavelengths emitted by LED and LCD screens. When someone looks through the treated glass from outside the room, the screen image is filtered out and appears black, while the rest of the room remains visible.
The film is applied to the interior surface of glass office partitions and conference room walls, making it a practical retrofit for existing Philadelphia offices. It does not hide printed documents, whiteboards, e-ink displays, OLED screens, furniture, or people; it is engineered specifically for compatible screen emissions and clear-glass interiors.
5-year commercial warranty. Interior application on compatible glass. Source: Designtex / Steelcase.
Casper ClearCasper Clear is the cleanest option for firms that want the glass to remain glass. The film is optically invisible in normal use, so hallway views into conference rooms, boardrooms, huddle spaces, and executive offices stay open. The privacy effect becomes obvious only when a compatible screen is active behind the treated glass.
That makes Casper Clear a strong fit for law firms, private equity offices, medical suites, and tech companies that invested in transparent interiors and do not want visible film graphics. It supports screen privacy while preserving daylight, interior architecture, and the open-plan feel that Philadelphia office designers are trying to protect.
Casper Clear is optically clear — invisible on glass until a screen turns on. 5-year commercial warranty. Source: Designtex.
Patterned & CustomCasper Patterned combines the screen-cloaking function with decorative glass design. Geometric patterns and frosted design language can add visual rhythm to conference room walls, mark privacy zones, and soften long glass corridors while still protecting LED and LCD screen content from hallway views.
Custom printing brings brand logos, environmental graphics, wayfinding, and Philadelphia-specific interior themes into the Casper substrate. Creative firms, coworking spaces, university innovation labs, and client-facing offices can use Casper as both a privacy technology and a branded design surface.
Patterned and custom-printed Casper available on interior glass only. Contact Window Film Philadelphia for pattern samples. Source: Designtex.
Casper does a very specific job: screen-only privacy for glass offices. Here's how that differs from conventional privacy film.
| Privacy Factor | Casper Clear | Frosted Film | One-Way Mirror |
|---|---|---|---|
| Screens visible from outside | No | No (all content blocked) | Yes |
| People visible from outside | Yes | No | Partially |
| Daytime privacy | Screen-only | Full | Partial |
| Night privacy | Screen-only | Full | None |
| Open office aesthetic | Preserved | Blocked | Partial |
Casper Clear is intended for screen privacy on compatible LED and LCD displays. It does not cloak printed materials, whiteboards, e-ink, OLED, or the room itself. Warranty terms vary by commercial project; confirm with Window Film Philadelphia.

A Center City law firm with glass conference rooms along a high-traffic corridor needed to stop client materials from being visible to visitors, staff, and vendors walking past the lobby and elevator bank.
The firm liked its open, collaborative office. Full frosted film would have solved visibility, but it would also have made the conference rooms feel closed off and visually heavy. Blinds were not a fit because they interrupted the design language and required staff to remember to close them before every sensitive meeting.
Window Film Philadelphia installed Casper Cloaking Film on the interior surface of the conference room glass. After installation, LED and LCD display content appeared black from the hallway and lobby, while attorneys, clients, furniture, daylight, and the room architecture remained visible. The firm kept the transparent office aesthetic and removed the most obvious screen-data exposure.
Schedule a Casper assessment“Casper gave us the privacy outcome we needed without changing the character of the office. From the corridor, the rooms still feel open — the screens just stop broadcasting confidential work.”
Commercial teams using Casper for screen privacy in glass-walled offices and conference rooms.
★★★★★
"We spec'd Casper for every conference room on our floor. Client data is visible to anyone walking past in a glass-wall office — Casper fixed that without turning our office into a bunker."
★★★★★
"HIPAA compliance in a glass-wall clinic is genuinely hard. Casper made it straightforward — screens are private, the space still feels open and welcoming for patients."
★★★★★
"Our trading floor has glass conference rooms that face the elevator bank. Casper was the only solution that actually worked — frosted film was too much, blinds defeated the whole aesthetic."
Honest answers about Casper Cloaking Film in Philadelphia from commercial privacy film specialists.
Talk to a SpecialistCasper Cloaking Film is proprietary optical film technology made by Designtex, a Steelcase brand. Applied to the interior surface of glass office partitions, it selectively filters the wavelengths emitted by LED and LCD screens so screen content appears completely black from outside the glass while people, furniture, whiteboards, and daylight remain visible.
Casper works on LED and LCD displays. It does not cloak printed materials, whiteboards, e-ink displays, OLED screens, or non-emissive objects. During the site visit, Window Film Philadelphia confirms screen type, viewing angles, and partition layout before specifying the installation.
Yes. Casper Clear preserves the open glass-wall aesthetic because it targets screen light, not the room itself. People, furniture, daylight, and the architecture of the space remain visible from the hallway; only LED and LCD screen content is blacked out.
Casper Clear maintains high visible light transmission, approximately 80% or more, so the glass remains bright and optically clear. Patterned and custom printed Casper options vary by design density, but they are still intended for interior glass partitions where daylight and openness matter.
Yes. Casper is available as Casper Clear, patterned Casper designs, and custom printed graphics. Philadelphia firms can use geometric patterns, frosted design language, logos, or environmental graphics while still adding the screen-cloaking function to conference room glass.
Frosted film blocks the full view through glass. Casper is screen-only privacy: it makes LED and LCD screens appear black from outside while preserving visibility into the room. That makes it a better fit for firms that want data privacy without closing off the space.
Casper is used by law firms, financial services offices, private equity teams, healthcare suites, technology companies, coworking spaces, university spinoffs, and boardrooms with glass partitions. It is especially useful in Center City, University City, the Navy Yard, and other Philadelphia offices where hallway traffic passes conference rooms.
Window Film Philadelphia installs Casper Cloaking Film for commercial interiors across Philadelphia. The team assesses the glass partition, screen technology, viewing angles, pattern goals, and warranty requirements before recommending Casper Clear, Casper Patterned, or a custom printed solution.
Casper is easiest to understand in person: the room stays visible, but compatible LED and LCD screens go black from outside the glass. Schedule a Philadelphia office assessment and see samples on your actual partition glass.
VLT 69% · Casper Clear · visible light transmission varies by option
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