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Frequently Asked Questions
How does NullWave stop surrounding people from hearing my voice?
NullWave utilizes an internal acoustic labyrinth lined with reticulated cellular foam. When you speak, spoken longitudinal sound pressure waves are trapped and dissipated within microscopic acoustic chambers, dropping outward speech volume by -38 dB SPL. To a person standing right beside you, speech is reduced below the ambient room noise floor.
Will my voice sound muffled or hollow on phone calls?
No. Knowles studio-grade MEMS microphones are positioned directly at mouth aperture (12mm distance) with mechanical shock isolation. Your voice is captured with intimate proximity and full dynamic range, while exterior background noise from traffic, cafes, or airports is physically barred from reaching the capsules.
Does the mask cause heat or humidity buildup during long calls?
No. An ultra-quiet micro-impeller generates continuous laminar fresh airflow (1.8 CFM) through the breathing chamber with an inaudible acoustic floor of < 14 dB. You breathe naturally with zero stuffiness, zero lens fogging, and zero microphone turbulence.
Is it comfortable for multiple hours of consecutive wear?
Yes. NullWave weighs just 88 grams, utilizing medical-grade liquid silicone rubber (22 Shore A) with ergonomic facial contouring and flexible ear loops that distribute mass evenly without cartilage pressure.