First experience: 30 minutes, observe whether the ears are stuffy or the head is swollen.
Daily maintenance: 40-60 minutes is enough, there is no need to blindly extend the single time.
The higher the pressure, the shorter it is: 1.3ATA can last up to 60 minutes; 1.7-1.9 ATA recommends 35-50 minutes.
After leaving the cabin, if you feel dizzy, unable to sleep, and have ear swelling and pain, reduce it by 5-10 minutes next time. For those with a history of chronic obstructive pulmonary disease, pneumothorax, pregnancy, or undergoing oxygen therapy, please consult a doctor before use.
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