🌫️ Purpose:
When patients receive oxygen from cylinders or concentrators, the gas is very dry. A humidifier bottle:
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Moistens the oxygen before inhalation
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Prevents drying of the mucous membranes in the nose and throat
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Reduces irritation and discomfort during oxygen therapy
🔧 Common Specifications:
| Feature | Typical Description |
|---|---|
| Material | Polycarbonate or medical-grade plastic (transparent and durable) |
| Capacity | 200 ml – 500 ml (commonly around 250 ml) |
| Inlet Port | Usually threaded, connects to oxygen source |
| Outlet Port | Connects to nasal cannula or oxygen mask |
| Pressure Safety Valve | Often built-in to release excess pressure (usually 2 PSI) |
| Operating Pressure | Usually 0.2–0.5 MPa (2–5 bar) |
| Humidification Medium | Sterile water or distilled water |
| Flow Range | Typically supports 0 – 15 L/min of oxygen |
| Autoclavable | Some models are autoclavable (can be sterilized by heat) |
| Disposable/Reusable | Available in both types |
🧪 How It Works:
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Fill the bottle to the indicated level with sterile/distilled water.
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Oxygen enters through the inlet, passes through a diffuser or tube submerged in water.
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As oxygen bubbles through the water, it picks up moisture.
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The humidified oxygen exits through the outlet to the patient.
🛑 Precautions:
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Do not overfill or underfill.
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Use only sterile or distilled water to avoid infection.
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Clean regularly or use disposable types to maintain hygiene.
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Ensure tight connections to avoid leaks.
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