Understanding BiPAP Modes — What Sets DreamStation BiPAP Auto & ST Apart?

If your doctor has advised you to try BiPAP therapy, you may have noticed a variety of options on the market, such as the DreamStation BiPAP Auto and DreamStation BiPAP ST.

Both are made by Philips Respironics to support patients with more complex breathing needs. But what’s the real difference between them?

Let’s look at the difference between CPAP and BiPAP — and how these two DreamStation models compare.

1. CPAP vs. BiPAP — The Basics

A CPAP (Continuous Positive Airway Pressure) machine maintains your airway open while you sleep by applying constant pressure. It’s typically prescribed for mild to moderate sleep apnoea.

A BiPAP (Bilevel Positive Airway Pressure) machine, however, uses two pressure settings:

• IPAP (Inspiratory Positive Airway Pressure): For inhaling
• EPAP (Expiratory Positive Airway Pressure): For exhaling

BiPAP is ideal for people who struggle to exhale against constant pressure or who have conditions such as COPD, central sleep apnoea, or neuromuscular disorders.

2. DreamStation BiPAP Auto — Adaptive Comfort

The DreamStation BiPAP Auto automatically adjusts inhalation and exhalation pressures based on your breathing patterns. It’s designed for comfort and flexibility, offering features such as:

• Auto-adjusting pressure levels
• Ramp function for easier sleep onset
• Humidification and heated tubing options
• Advanced event detection and leak compensation

This model is perfect for people with obstructive sleep apnoea who need different pressure levels at various times during the night.

3. DreamStation BiPAP ST — Tailored Breathing Support

The DreamStation BiPAP ST (Spontaneous/Timed) offers additional control. It features a backup breath rate, ensuring you continue to receive air even if your natural breathing pauses.

This makes the BiPAP ST ideal for central sleep apnoea, complex sleep apnoea, or respiratory failure — conditions that require consistent ventilatory support.

4. BiPAP Auto vs. ST — Which Is Right for You?

Here’s a quick comparison:

Feature	DreamStation BiPAP Auto	DreamStation BiPAP ST
Pressure Type	Auto-adjusting IPAP & EPAP	Fixed or auto with backup rate
Target Condition	Obstructive Sleep Apnoea	Central/Complex Apnoea, COPD
Backup Rate	No	Yes
Complexity Level	Standard therapy	Advanced clinical support

Final Thoughts

When deciding between BiPAP Auto and ST, consider your medical condition and your doctor’s advice.

The buy cpap machine is ideal if you want flexible, comfortable pressure adjustments. If you need backup breathing support or suffer from central apnoea, the DreamStation BiPAP ST is the better choice.

Both models demonstrate Philips’ dedication to providing dependable, adaptive sleep therapy that helps you breathe easier and sleep better — every night.