Introduction
For architects, interior designers, and workplace consultants, the acoustic pod is no longer a fringe product — it is a mainstream specification decision that your clients are increasingly likely to raise themselves. The global acoustic pod market was valued at approximately $14.1 billion in 2024 and is projected to reach $40.3 billion by 2033, growing at a compound annual growth rate of 12.4% (Grand View Research). This growth is driven directly by the inadequacy of open-plan offices — the dominant spatial typology of the past two decades — for the acoustic conditions that knowledge work requires.
When your client asks “can we add some quiet spaces without building new rooms?”, they are asking a question that has a technically precise, financially compelling, and professionally specifiable answer: modular acoustic pods, selected on the basis of independently certified ISO 23351-1 DS,A performance, specified with the same rigour as any other building system.
This guide is written for design professionals specifying acoustic workspace solutions. It covers the six key reasons to recommend acoustic pods to your clients, the technical specification framework that enables you to write a credible performance-based brief, and the HIGHKA product range that delivers independently verified acoustic performance across a five-model configuration set.
Why Design Professionals Are Increasingly Specifying Acoustic Pods
The convergence of three workplace trends has made acoustic pods a near-universal specification consideration for any new office fit-out or refurbishment project:
Hybrid work has changed the function of the office. With 43% of US companies now operating structured hybrid policies (Flex Report Q2 2025), the office is no longer primarily a place for individual desk work. It is increasingly a destination for collaboration, focused working sessions, confidential conversations, and small-group meetings — all of which require acoustic management that open-plan environments cannot provide.
Conference rooms are structurally misaligned with actual meeting patterns. Research shows that 40% of meetings involve 4–6 people (Gable.to), yet most conference room inventories are sized for larger groups. Conference rooms are also occupied by individual users for phone calls over 40% of their available time (Atlassian), leaving teams without appropriate enclosed space for their actual working needs.
Clients are increasingly acoustically literate. Following years of open-plan dissatisfaction, the business case for acoustic infrastructure is well understood at board level. Clients are arriving at design briefs with specific acoustic requirements — and the architect who can specify those requirements against a certified performance standard is demonstrably more valuable than one who cannot.
Reason 1: Certified Acoustic Performance You Can Write Into a Specification
The first and most professionally significant reason to specify acoustic pods is the availability of independently certified acoustic performance data that enables you to write a performance-based specification — the same approach you would take with any engineered building system.
The Relevant Standard: ISO 23351-1 DS,A
The international standard specifically developed for enclosed office furniture acoustic measurement is ISO 23351-1, which produces the metric DS,A — A-weighted speech level reduction in decibels. This metric quantifies how much an enclosed pod reduces speech-frequency sounds — the frequencies (500 Hz–4 kHz) responsible for the Irrelevant Speech Effect (ISE), the psychoacoustic mechanism through which background conversation degrades cognitive performance.
ISO 23351-1 classifies pods into:
- Class A: DS,A ≥ 30 dB
- Class B: DS,A ≥ 25 dB
This classification allows you to write a meaningful performance specification: “Enclosed acoustic workspace pods shall achieve a minimum DS,A of [X] dB under ISO 23351-1, independently tested by an accredited laboratory.”
HIGHKA’s certified performance:
HIGHKA soundproof office pods achieve DS,A = 29.4 dB, independently tested by SGS — an internationally accredited laboratory. This places HIGHKA pods within ISO 23351-1 Class B, with performance approaching Class A.
In a typical open-plan office operating at 60–65 dB ambient, this brings the pod interior to approximately 31–36 dB — below the threshold at which background speech is intelligible. In practical terms: background conversation from the surrounding office floor is not audible as recognisable language inside the pod.
Frequency-specific performance data for your specification:
| Frequency | Attenuation |
|---|---|
| 125 Hz | 25.1 dB |
| 250 Hz | 24.1 dB |
| 500 Hz | 28.8 dB |
| 1,000 Hz | 33.4 dB |
| 2,000 Hz | 39.3 dB |
| 4,000 Hz | 41.1 dB |
| 8,000 Hz | 43.9 dB |
The upper frequency performance (2,000–8,000 Hz) is particularly relevant for speech privacy: these are the frequencies at which voice consonants and formants are most distinct, and where the ISE is most cognitively disruptive. HIGHKA’s six-layer hollow composite acoustic structure, patent-protected and tuned for the 500 Hz–4 kHz speech range, achieves this frequency-specific performance through structural design rather than consumable acoustic materials.
Important note for specification writers: When comparing acoustic pod options for a client brief, always require ISO 23351-1 DS,A from a named, independently accredited laboratory. Marketing figures cited without reference to a measurement standard or an independent laboratory cannot be treated as equivalent to certified performance data.
Reason 2: Deployment Speed That Protects Your Project Programme
For design professionals, programme management is a critical deliverable. Delays in fit-out that prevent client operations are professional liability risks — and traditional construction sequencing (permits, contractor scheduling, trade coordination, snagging) creates multiple programme-compression risks at every stage.
HIGHKA acoustic pods eliminate most of these risks from the acoustic workspace element of your project programme.
Deployment logistics:
- Assembly time: 2–4 hours per pod, by a 2–3 person internal facilities team using standard hand tools
- No permits required: Pods are freestanding equipment, not building modifications — no local authority approval required
- No specialist contractors: No electricians, no acoustic engineers, no HVAC trades required for installation
- No structural modification: No core drilling, no suspended ceiling penetration, no slab anchoring
- Power requirement only: Standard single-phase electrical outlet within cable reach of planned position
Programme implication: Acoustic pod installation can be scheduled as a single half-day activity, with zero preceding dependencies on permit approval or trade scheduling. For a fit-out programme compressed by client-driven deadline requirements, this zero-dependency installation is a significant programme management asset.
Comparison to constructed rooms: A new enclosed meeting room, from design to handover, typically requires 3–6 months including permit processing. Pods can be installed on any day that suits the project programme — including the day before the client occupies the space.
Reason 3: A Total Cost Argument You Can Use in Client Value Engineering
Design professionals are frequently asked to participate in value engineering exercises — identifying where client investment can be redirected without compromising functional or aesthetic outcomes. Acoustic pods provide one of the strongest value engineering arguments available in office fit-out.
Construction Cost Baseline
Commercial office construction in most major markets costs $500–$1,500+ per square metre (RSMeans / BuildingAdvisor, 2025). A 4-person enclosed meeting room of approximately 15–20m² (including wall construction, permits, electrical, acoustic ceiling, AV, and furniture) typically costs $50,000–$150,000+ to deliver.
Beyond the capital cost, constructed rooms generate:
- Reinstatement liability at lease end: typically $15,000–$50,000+ per enclosed room, creating a negative asset that exists from the moment construction is complete
- Zero residual value at lease end: leasehold improvements depreciate to zero and cannot be transferred to a new premises
Acoustic Pod Total Cost of Ownership
HIGHKA pods are movable equipment, not leasehold improvements. They:
- Retain residual value at lease end — they are transferred to the new premises rather than demolished
- Generate no reinstatement liability — they are removed cleanly without building modification
- Carry an 8–12 year design lifespan with key components tested to 50,000+ use cycles, supporting the per-year amortised cost comparison against permanent construction
For client value engineering presentations, the comparison between a 4-person constructed meeting room ($50,000–$150,000+, zero residual value, $15,000–$50,000 reinstatement liability) and a HIGHKA Model L pod (equivalent function, full portability, full residual value, zero exit liability) is one of the most compelling workspace investment arguments available.
Accounting note: Acoustic pods are classified as movable equipment, not leasehold improvements, under both US GAAP and IFRS. This classification may reduce capital approval threshold requirements, enable Section 179 expensing (US) or Annual Investment Allowance treatment (UK), and avoid the lease accounting complications of constructed rooms.
Reason 4: Specification Flexibility Across a Complete Model Range
A key requirement for specifying acoustic pods across multiple client project types is a model range that scales from individual focus spaces to small meeting rooms — allowing the same product family specification to serve different zones within a single project.
HIGHKA’s five-model range provides this scalability:
| Model | Capacity | Primary specification use case |
|---|---|---|
| Model S | 1 person | Individual focused work pods; private call zones; quiet focus areas in hotdesk environments |
| Model M | 1–2 persons | Private bilateral conversation zones; HR/confidential discussion areas; paired work stations |
| Model SL | 2 persons | Dedicated 2-person collaboration spaces; private interview rooms; coaching areas |
| Model L | 2–4 persons | Small meeting room replacement; project team work areas; client consultation rooms |
| Model XL | 6–8 persons | Alternative to small conference rooms; team meeting spaces; multi-person client briefing rooms |
The specification advantage of a consistent product family:
When all five models share the same acoustic specification (DS,A = 29.4 dB, SGS/ISO 23351-1), the same material certifications (EU E1, 95% recyclable), the same sensor technology (microwave radar breathing sensor), and the same ventilation system (dual-channel turbine), your specification document can reference a single certified performance standard that applies across all pod sizes in the project.
8 exterior colour options (developed through 500+ market surveys) enable aesthetic integration across diverse client design intentions, from neutral corporate environments to branded and themed commercial interiors. All models include scratch-resistant HPL tabletop and high-density foam seating as standard — eliminating the need for separate furniture specification and procurement.
Reason 5: Environmental Specification Credentials for ESG-Committed Clients
For clients with formal ESG reporting commitments, sustainability certification requirements, or LEED/BREEAM project targets, the environmental specification of acoustic pods is a meaningful project consideration.
HIGHKA’s environmental specification credentials:
- Materials: 95% recyclable — the overwhelming majority of pod materials are recoverable at end of life, supporting circular economy commitments
- Air quality: EU E1 formaldehyde emission compliance across all pod materials — the most stringent mainstream material air quality standard. This ensures the enclosed pod interior receives zero VOC contribution from the pod’s own materials — an important specification for enclosed spaces where occupants spend extended working periods
- Energy: HIGHKA’s microwave radar breathing sensor (0.1-second response, −30°C to 60°C operating range) activates lighting and ventilation automatically on occupancy and deactivates on departure — eliminating the energy waste of continuously operated lighting and ventilation in unoccupied spaces
- Construction waste: Zero construction or demolition waste generated during installation or removal — no C&D waste contribution to project sustainability metrics
- No landlord approval: No building modification means no materials consumption for structural work, no demolition waste, and no disruption to building fabric
Certifications: CE, UL, ISO 9001, SGS — the full certification suite expected for commercial-grade product specification.
For LEED v4 or BREEAM New Construction projects, acoustic pods contribute to credits under Indoor Environmental Quality (acoustic performance, air quality) and Materials and Resources (recyclable content, no construction waste). Consult your LEED/BREEAM assessor for specific credit applicability in your project type.
Reason 6: Integrated Technical Systems That Reduce Coordination Complexity
A primary source of project coordination complexity in fit-out is the interface between acoustic space, mechanical systems (HVAC, ventilation), electrical systems (lighting, power), and furniture — each typically specified by different consultants and procured through different supply chains.
HIGHKA acoustic pods integrate all of these systems within a single factory-engineered product:
Ventilation — integrated: The dual-channel turbine ventilation system is factory-installed and operates from the pod’s standard power supply. No connection to the building’s HVAC system is required — eliminating the HVAC coordination interface entirely. The system provides:
- Active airflow throughout occupancy (continuous, not motion-triggered)
- 30-minute idle refresh cycle between occupancy sessions
- Post-use odour clearance cycle — critical for high-frequency use environments
- Harvard research has established that proper ventilation supports a 26% increase in cognitive function — a client-facing specification argument of direct commercial relevance
Lighting — integrated: The anti-glare Osram LED lighting system is factory-installed with individual user control:
- Stepless 0–1,800 lm output control
- 3,000K–6,500K adjustable colour temperature — full circadian range
- CRI 90, UGR <20 — meeting EN 12464-1 office lighting standard
- No connection to the building’s lighting circuit required
Occupancy sensing — integrated: The microwave radar breathing sensor activates and deactivates all pod systems automatically based on occupancy — eliminating the need for separate occupancy sensor specification, installation, or commissioning.
Control — integrated: Industrial-grade PLC manages all systems — no separate BMS integration required.
Furniture — included: Scratch-resistant HPL tabletop and high-density foam seating are standard in all models — no separate furniture specification, procurement, or installation required.
The coordination advantage: For the specifying architect, a HIGHKA pod is a single procurement item that replaces what would otherwise be multiple separately coordinated supply chains: acoustic construction, mechanical ventilation, electrical lighting, furniture specification, and occupancy sensing. The reduction in interface risk — and in the specification document complexity — is a meaningful professional efficiency.
Writing the Acoustic Pod Specification: A Template Framework
For architects and interior designers incorporating acoustic pods into a performance specification, the following framework provides the key elements of a robust pod specification clause:
Acoustic performance: “Enclosed acoustic workspace pods shall achieve a minimum speech level reduction of DS,A = [X] dB under ISO 23351-1, as independently tested by an accredited laboratory. The supplier shall provide a laboratory test report identifying the testing body and the specific DS,A figure achieved.”
Ventilation: “Pods shall incorporate an active ventilation system that operates continuously throughout occupancy. Ventilation shall not be dependent on occupant motion detection. The ventilation system shall operate from the pod’s own power supply without connection to the building HVAC system.”
Lighting: “Pod lighting shall be adjustable in both output (minimum range 0–[X] lm) and colour temperature (minimum range [X]K–[X]K). Lighting shall achieve CRI ≥ 90 and UGR ≤ 20, meeting EN 12464-1 office lighting standards.”
Occupancy sensing: “Pods shall incorporate automatic occupancy detection that activates and deactivates lighting and ventilation systems without user intervention. Occupancy detection shall function during stationary occupancy without requiring occupant movement.”
Materials: “Pod materials shall comply with [EU E1 / equivalent jurisdiction standard] formaldehyde emission requirements. The supplier shall confirm recyclable content percentage.”
Installation: “Pods shall be freestanding and shall require no structural modification to the building, no connection to building HVAC or electrical circuits beyond a standard single-phase outlet, and no local authority approval for installation.”
HIGHKA Complete Specification Data Sheet
| Parameter | HIGHKA specification |
|---|---|
| DS,A (ISO 23351-1) | 29.4 dB (SGS-verified) |
| Acoustic classification | ISO 23351-1 Class B |
| 125 Hz | 25.1 dB |
| 250 Hz | 24.1 dB |
| 500 Hz | 28.8 dB |
| 1,000 Hz | 33.4 dB |
| 2,000 Hz | 41.1 dB |
| 4,000 Hz | 41.1 dB |
| 8,000 Hz | 43.9 dB |
| Acoustic structure | Six-layer hollow composite, patent-protected, 500 Hz–4 kHz speech range |
| Sensor | Microwave radar breathing — 0.1s response, −30°C to 60°C |
| Ventilation | Dual-channel turbine; active throughout occupancy; 30-min idle refresh; post-use clearance |
| Lighting output | 0–1,800 lm stepless |
| Colour temperature | 3,000K–6,500K adjustable |
| CRI | 90 |
| UGR | <20 |
| Lighting standard | EN 12464-1 compliant |
| LED source | Anti-glare Osram |
| Control | Industrial-grade PLC |
| Furniture | HPL tabletop (scratch-resistant) + high-density foam seating; standard all models |
| Formaldehyde | EU E1 compliant |
| Recyclable content | 95% |
| Certifications | CE, UL, ISO 9001, SGS |
| Exterior finishes | 8 colour options |
| Models / capacity | S (1P) / M (1–2P) / SL (2P) / L (4–6P) / XL (6–8P) |
| Assembly | 1–4h, 1–3 persons, standard hand tools |
| Permits | None required |
| Operational lifespan | 8–12 years |
| Use cycle testing | 50,000+ (key components) |
| Global deployment | 50+ countries, since 2012 |
Frequently Asked Questions
Acoustic Pods Are a Mainstream Specification — Treat Them Like One
The acoustic pod is not a novelty product that requires apologetic justification in a design brief. It is a factory-engineered, independently certified, internationally deployed workspace solution that addresses one of the most persistent documented failures of modern office design: the inability of open-plan environments to support the acoustic conditions that knowledge work requires.
For the architect or interior designer specifying acoustic workspace for a client project, HIGHKA provides what professional specification requires: independently certified DS,A = 29.4 dB performance under ISO 23351-1 from SGS; a complete technical data set including frequency-specific performance from 125 Hz to 8,000 Hz; EN 12464-1-compliant integrated lighting; EU E1 material certification; CE, UL, ISO 9001, SGS product certifications; a five-model range from 1 to 6 persons; 8 exterior finish options; and an 8–12 year design lifespan with 50,000+ use cycle testing.
The specification case is complete. The performance data is verified. The product range is specified.
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