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HOME >> NEWS >> Perforated Speaker Grilles in Portable Health Booth Audio Enclosures

Perforated Speaker Grilles in Portable Health Booth Audio Enclosures

This article explores the acoustic and hygienic demands of portable health booths using built-in speaker systems. With growing use in telemedicine and remote diagnostics, such booths must balance sound clarity and antimicrobial safety. Perforated metal speaker grilles—typically made from aluminum or stainless steel—offer protection from fluid splashes, dust, and vandalism while maintaining voice transmission. Key standards like ISO 22196 and ASTM E2180 ensure antimicrobial performance. A case study from South Korea’s COVID-19 response demonstrates successful deployment, while testing metrics highlight grille performance under sterilization cycles and sound pressure retention.

Perforated Speaker Grilles in Portable Health Booth Audio Enclosures

Why Portable Health Booths Need Acoustic Optimization

As mobile health services expand globally, portable health booths are being deployed for diagnostics, telemedicine, and remote consultations. Integrated speaker systems allow for audio instructions, virtual guidance, and patient-provider communication. However, space constraints and hygiene concerns require that speaker openings be protected by perforated metal grilles. These grilles must balance audio clarity with antimicrobial surface standards. According to ISO 22196, antimicrobial coatings are essential for equipment used in public health environments.

Material and Performance Standards

Key grille requirements for health booths include:

  • Aluminum or stainless steel, resistant to disinfectants

  • Micro-perforation (1.5–2.5 mm holes) for sound passage with minimal obstruction

  • Compliance with ASTM E2180 and ISO 3744 for microbial resistance and acoustic transparency

Grilles may also serve as barriers against accidental fluid splashes, dust ingress, and vandalism.


Case Study: COVID-19 Testing Kiosk Deployment

In 2021, a city in South Korea deployed over 50 mobile COVID-19 kiosks. Each booth integrated 10W rear-firing speakers protected by powder-coated perforated aluminum grilles. The booths delivered voice prompts for self-testing, reducing human contact. Post-installation studies (published via ScienceDirect) showed the grilles maintained speech intelligibility at >95% under various ambient noise levels.

Test Metrics for Booth Audio Panels

Acoustic lab testing covered:

  • Sound pressure level retention (target: ≥ 90% transmission through grille)

  • Antimicrobial surface effectivity (per ISO 22196)

  • Durability under 1000+ sterilization cycles

Grilles mounted inside ABS frames reduced surface reflections. Simulation data backed by IEEE smart health acoustics research validated low distortion levels.


Installation and Integration Recommendations

Portable booths vary in shape, but grille integration is generally:

  • Flush-mounted to minimize snagging during transport

  • Backed by foam or mesh filters for hygiene

  • Included in maintenance protocols for weekly disinfection

Rear sound projection is enhanced by angling the grille surface or applying reflective baffles.


Related solutions: Perforated Audio Systems for Clinics, Smart Health Speaker Grilles, Enclosed Health Booth Panels

References: ISO 22196, ASTM E2180, ISO 3744, IEEE Smart Health Audio Design, ScienceDirect Health Booth Study

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