Winpod S-Pod Achieves Certified Class A Acoustic Performance (ISO 23351-1:2020)

Premium open-plan office acoustic phone booth pods Winpod has announced a major technical milestone: the upgraded S-Pod acoustic phone booth has achieved Certified Class A acoustic performance under ISO 23351-1:2020, increasing its speech level reduction (DS,A) from 28.9 dB to 30.1 dB.

With this official certification, Winpod joins the top tier of international office acoustic pod manufacturers, offering corporate clients and workplace strategists high-performance soundproofing solutions for modern open-plan office environments.

ISO 23351-1:2020 Technical Breakdown: Class A vs. Class B

Acoustic ratings for open-plan office pods are strictly determined by the entire integrated system —including soundproof glass, perimeter door seals, acoustic paneling, and quiet ventilation units.

Why Class A Acoustic Booths Are Essential for Open-Plan Offices

For workplace designers, facility managers, and commercial furniture buyers, investing in Class A acoustic phone booths offers clear operational and financial benefits:

1. Absolute Confidentiality for HR & Legal Compliance

Human ears naturally focus on intelligible speech. In a Class B pod, sensitive HR discussions, legal calls, or financial reviews can bleed out into a quiet office. Class A acoustic pods drop human speech below the human comprehension threshold, guaranteeing privacy for confidential meetings.

2. Maximum Focus & Productivity Recovery

Research shows that open-office interruptions require roughly 23 minutes for an employee to regain full focus. Class A acoustic booths eliminate external chaos even when placed next to high-traffic collaborative zones like sales floors or reception areas.

3. Compatibility with Low-Noise Office Environments

Offices equipped with active sound masking or low-decibel HVAC systems (<35–40 dB ambient noise) require Class A pods. Class B pods allow voice leakage in quiet spaces, whereas Class A performance ensures absolute sound containment regardless of background noise.

4. Superior Frame Stability & Lower Total Cost of Ownership (TCO)

Lower-grade acoustic pods often warp over time due to humidity, temperature shifts, and daily wear, leading to seal failure and acoustic leakage. Winpod’s Class A engineering features high-rigidity structural framing, ensuring the booth maintains its acoustic integrity in Year 5 just as it did on Day 1.

Acoustic Verification: Decoding Third-Party Test Reports

When procuring acoustic booths for commercial interior projects, buyers should always request official third-party laboratory test reports (e.g., TÜV SÜD) rather than relying solely on marketing datasheets.

A complete acoustic evaluation relies on two complementary international standards:

• ISO 23351-1:2020: Measures the total speech level reduction (DS,A) of the complete furniture ensemble.
• ISO 3741:2010: Establishes precision laboratory methods for determining acoustic sound power levels within reverberation test chambers.

How to Select the Right Acoustic Pod for Your Office Project

A successful office furniture procurement strategy requires evaluating four core pillars:

1. Verified Acoustic Performance: Ensure third-party testing to ISO standards.
2. Environmental & Safety Certifications: Request UL GREENGUARD Gold (low indoor chemical emissions) and UL ECVP 2789 (recyclability verification).
3. Build Quality & Manufacturing: Check structural stability, door seals, and ventilation airflow rates.
4. Budget & Support: Balance initial investment against long-term maintenance and local HK vendor support.

Upgrade Your Open-Plan Office Workspace

Looking for certified Class A acoustic pods or modular open-plan office furniture in Hong Kong?

Contact Our Workplace Specialists Today to request official ISO acoustic test reports, layout consultations, or showroom demonstration appointments.