Parsian Teb articles

Medical equipment buying guides and practical information to help you choose.

pulse oximeterblood oxygen

What Is a Pulse Oximeter? How to Use It, Reading the Number, and Limitations

A pulse oximeter estimates oxygen saturation and pulse rate, but its reading is sensitive to circulation, movement, hand temperature, nail polish and skin characteristics.

Parsian Teb Editorial TeamAugust 11, 2025Updated: November 12, 2026

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BiPAP machineBiPAP

What Is a BiPAP Machine? Uses, How It Differs from CPAP, and Tips for Use

BiPAP creates two pressure levels, one for inhaling and one for exhaling. Learn about its uses, how it differs from CPAP and a ventilator, the circuit components, cleaning and fixing mask leaks.

Parsian Teb Editorial TeamAugust 11, 2025Updated: November 10, 2026

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oxygen concentratorhome oxygen concentrator

What Is an Oxygen Concentrator? How It Works, Maintenance and Safe Use

An oxygen concentrator concentrates ambient air and is used for prescribed oxygen therapy. Read about the difference between stationary and portable models, maintenance and safety.

Parsian Teb Editorial TeamAugust 11, 2025Updated: November 12, 2026

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