QUICK SUMMARY: KEY BUYER TAKEAWAYS •Speech Privacy Trumps "Total Silence": No pod delivers 100% sound blockage. The true benchmark is ISO 23351-1 Class A (DS,A ≥ 30 dB), which guarantees conversations inside cannot be deciphered outside. •Acoustic Leaks Live in the Gaps: A mere 1% perimeter door gap compromises overall acoustic isolation by up to 50%. Insist on perimeter double-gasket magnetic seals and PVB acoustic laminated glass. •Prevent "Pod Fatigue" with High Airflow: Without continuous ventilation (≥ 30–50 m³/h per person), CO₂ buildup causes cognitive decline and fatigue. Centrifugal fan airflow with labyrinth silencer plenums is mandatory. •Verified Turnkey Modularity: The SpaceUnited series (S, M, SL, L, XL) delivers pre-wired Class A privacy, OSRAM CRI 92 lighting, and rapid 2-person, 1-hour assembly with zero permanent building alterations.