S9 autoset whistle sound

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
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Boston Guy
Posts: 40
Joined: Tue Jul 13, 2010 10:21 am

S9 autoset whistle sound

Post by Boston Guy » Tue Aug 24, 2010 10:04 pm

Does anyone else who owns the S9 auto, hear any wort of whistle noise on exhaling? It seems to be right near the end of the exhale. And it only seems to happen at my starting pressure of 10. And goes away once the pressure climbs.

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elena88
Posts: 1650
Joined: Sun Feb 28, 2010 2:25 pm
Location: california

Re: S9 autoset whistle sound

Post by elena88 » Tue Aug 24, 2010 11:31 pm

Once or twice I heard a tiny whispy noise but it was coming from my exhalation port on my nose pillows,
and it didnt last but a few minutes..

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Mask: Swift™ FX Nasal Pillow CPAP Mask with Headgear
Humidifier: S9™ Series H5i™ Heated Humidifier with Climate Control
Additional Comments: sleep study: slept 66 min in stage 2 AHI 43.3 had 86 spontaneous arousals I changed pressure from 11 to 4cm now no apap tummy sleeping solved apnea
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