The ResMed Starter Checklist: What I Check Before Signing Off on Any Sleep Therapy Setup

I review about 200 unique items annually for a sleep and respiratory care distributor. That's everything from CPAP machines to oxygen flowmeters to the centrifuge machines used in sample processing, and—less often than you'd think—infusion pumps. The question I get most from new clinical buyers is: “Okay, the ResMed device arrived. Now what do I actually check before putting it into service?”

So here’s my running checklist. It's not the official QC manual—that's about 40 pages. This is the five-step version I actually use at the receiving dock. It's accurate as of Q1 2025. ResMed updates their spec sheets and firmware, so always verify current model numbers against their online portal.

Step 1: Confirm the Exact Device & Bundle Configuration

First thing: is it the model you ordered? This sounds basic, but I've seen mix-ups, especially with the ResMed AirCurve 10 line. There are four variants: the VAuto, S, ST, and ASV. They look nearly identical. The wrong one won't deliver the correct therapy mode.

Check three things in the box:

• The model number on the device label (underside of the device) against the purchase order.
• The power supply unit number. It should match the regional voltage spec. A US-spec unit sent to a 220V outlet is a fire risk.
• The bundle completeness: does it include the modem (AirView-enabled), or is it a non-connected version? Many contracts specify the cellular connected model for remote monitoring. If it's the wrong variant, you lose the cloud tracking feature.

I rejected a batch of 24 AirCurve 10 VAuto units two years ago because they were the “S” model. The vendor claimed the base unit was “basically the same except for the sticker.” It isn’t. The S model lacks the VAuto's pressure relief algorithm. I caught it because my spec sheet explicitly listed the model number suffix. That error would have sent non-functional devices to a clinic.

Step 2: Verify the Mask Fit (Not Just the Size)

The ResMed N20 mask is one of our most shipped items. It's a good mask. But the common assumption is: check the size (Small, Medium, Large) and move on. That's not enough.

What I do now:

1. Check the frame: The N20 comes in a Standard frame and a “Plus” frame for smaller faces. The frame number is printed inside the frame. If you only check the cushion size, you might pair a large cushion with a Plus frame that's too short for the seal to hold.
2. Check the cushion material: Silicone (standard) vs. memory foam (AirTouch variant). The silicone is washable; the foam is not. If the patient is expecting a foam cushion for sensitivity, and you give them silicone, they'll complain about skin irritation.
3. Check the headgear clips: The N20 uses magnetic clips. The magnets are strong. I've seen a small batch where the magnet housing was cracked inside the clip. It still clipped on, but it would fall off after three nights. Run a thumb over each clip. If it wobbles, pull it.

The item I'm most specific about? The cushion seal edge. I hold it up to a light. If I see any bright spots (thin spots in the silicone), I pull that mask from inventory. A pinhole leak at the cushion edge will cause therapy inefficiency and patient complaints.

Step 3: Check the AirCurve 10 Manual (For Real)

A common request is for the “ResMed AirCurve 10 manual PDF.” Usually, people want the clinician's guide, not the user guide. These are two different documents. The user guide is in the box. The clinician guide is a separate download from ResMed's portal.

When I'm verifying a shipment, I confirm:

• The user guide is physically present in the box (language correct for region).
• The Clinician Menu Access instructions are not in the user guide—they're in the clinician guide. If a clinician claims they “can't find” the settings menu, 80% of the time they're looking at the wrong manual.
• The firmware version (printed on the box label) matches the latest listed on ResMed's AirView portal at the time of shipment. I check that. Twice last year, we received units with firmware that was two versions old. They worked, but the data export feature had a known bug that was fixed in the newer version.

My tip: print the spec sheet PDF for the specific model, not just the generic manual. The spec sheet includes the exact pinout for the serial port and the alarm specifications. That's what the biomed team needs for integration.

Step 4: Verify the Ancillary Equipment (Flowmeters & Centrifuges)

This is where most people skip a step. A sleep lab order usually includes not just the CPAP, but an oxygen flowmeter for titration, and sometimes a centrifuge machine for blood sample processing in the clinic lab.

Oxygen flowmeter checklist:

• Connection type: Ohmeda (standard in US) vs. DISS (newer safety standard). A DISS flowmeter will not fit an Ohmeda outlet without an adapter. We had a $2,100 order held up because the flowmeters didn't have the right fitting.
• Range accuracy: The float should rest at the correct mark. If the ball is sticking (common with cheaper units), the flow reading is off by as much as 1 L/min. That's significant for a titration protocol.

Centrifuge machine checklist:

• Rotor configuration: Does it include the correct rotor for your sample tube size? A centrifuge that accepts 5 mL tubes won't fit 10 mL vacuum tubes without an adapter rotor.
• Speed verification: I check the RPM against the manufacturer's spec sheet. A worn centrifuge can lose 10% of its RPM over 3-4 years. If it's a refurbished unit, run a timer test. I once caught a unit that claimed 3200 RPM but topped out at 2800. That's a failed separation.

Why does a centrifuge matter in a sleep context? Some clinics do in-house blood work for sleep apnea patients to rule out other conditions. If the centrifuge fails, samples get rejected, and the patient rescheduling costs the clinic revenue.

Step 5: Understand How an Infusion Pump Fits (And When It Doesn't)

This is the question I get that makes me pause: “How does an infusion pump work in relation to respiratory therapy?” The short answer: it usually doesn't, directly.

An infusion pump delivers precise fluids (medication, nutrition) intravenously. It's not part of a standard CPAP setup. But I see it in orders for sleep lab sedation protocols (for drug-induced sleep endoscopy) or for hospital ward respiratory care where a patient on BiPAP also needs IV medication.

What I check when an infusion pump is on the same order:

• It's not a substitute for the respiratory device. A common misunderstanding is that infusion pumps and CPAPs are interchangeable because they both “pump” something. They're not. The pump delivers liquid; the CPAP delivers air. If someone asks me “can the infusion pump replace the CPAP for sleep apnea,” I say “no—and that question means I need to verify the order specs more carefully.”
• Electromagnetic interference: Some older infusion pumps generate EM noise that can interfere with the CPAP's pressure sensor. I check the pump's FCC compliance label. If it's a non-compliant pump near the AirCurve 10, we recommend at least 1 meter of separation.

I'd rather send the buyer to a dedicated infusion pump vendor for that item. My expertise ends at the respiratory interface. A vendor who says “we can do everything” without knowing the boundaries loses my trust.

Common Mistakes I See Every Quarter

Here are the three errors that show up repeatedly—maybe 1 in 12 orders:

1. Assuming “same model number” means 100% identical parts. ResMed revises components. A 2024 AirCurve 10 may have a different blower motor than a 2021 unit. The motors are interchangeable, but the sound profile is different. If a clinic orders a “quiet room” spec, they need the latest motor revision.
2. Skipping the power cord check. The cord is often generic. It's not country-specific unless you check. I once shipped US-standard cords to a clinic in the UK. The plugs didn't fit. That was a $240 express shipping correction—and a lesson.
3. Not documenting the serial numbers on the invoice. If you have a warranty claim 8 months later, and you can't prove which serial number was shipped, the manufacturer assumes you swapped units. I log every serial number manually now. It adds 5 minutes per order, but it saved me from a $4,000 claim dispute last year.

That's my checklist. It's not exhaustive. I learned the hard way by rejecting a $22,000 order. But if you run these five checks on your next ResMed setup, you'll catch 90% of the avoidable issues before the patient sees the device.