Beginner's Guide to CPAP Equipment: First Setup
By Treatments for Sleep Apnea · Published June 8, 2026
Opening the box on your first CPAP is genuinely overwhelming. There is a machine, a hose, a mask with straps, a water tub, and a stack of instructions, and none of it is intuitive at 10pm on night one. The good news is that the parts are simple once you know what each does, and a handful of early habits decide whether this becomes routine or ends up in a closet.
The core parts
A CPAP setup is four pieces working together.
- The machine: pressurizes room air to the pressure your sleep study set. Types are compared in APAP vs CPAP vs BiPAP.
- The mask: seals to your face and delivers the air. Style choice is covered in CPAP masks.
- The tubing: carries the air from machine to mask, detailed in CPAP tubing and hoses.
- The humidifier: adds moisture so the airflow does not dry you out, covered in CPAP humidifiers.
Plus the consumables: filters and cushions that get replaced on a schedule.
Setting it up the first night
Place the machine at or below mattress height so any condensation drains away from you, not toward your face. Fill the humidifier with distilled water. Connect the tubing and mask, then fit the mask while lying down in your normal sleep position, since your face changes shape on the pillow. Turn on the ramp feature so pressure starts low and builds as you drift off.
The early habits that matter most
Fit is everything. The mask is what you actually live with, and getting the style and size right prevents the leaks and red marks that drive beginners away. Beyond that: wear the mask for a bit before bed to acclimate, use humidification from the start, and set up a simple cleaning routine. The first two weeks are the hardest, and small fixes beat willpower.
Common beginner problems
Dry mouth, leaks, feeling claustrophobic, and a tugging hose are all normal early on and all fixable. Each links to a focused fix above, and the comfort extras worth considering are in CPAP accessories for comfort.
When to talk to a clinician or supplier
Reach out if you cannot get a comfortable fit, if the pressure feels wrong, or if you are struggling after a couple of honest weeks. Your supplier handles sizing and replacements; your clinician handles pressure and settings.
This is general information, not medical advice. See the full equipment hub for every part in detail.
Frequently asked questions
What equipment do I need to start CPAP?
The core kit is the machine, a mask (nasal, pillow, or full face), tubing, and a humidifier, plus filters and replacement cushions. The machine and pressure are prescribed; the mask style and accessories are where you have choices that affect comfort.
How do I set up my CPAP for the first time?
Place the machine at or below mattress height, fill the humidifier with distilled water, connect the tubing and mask, fit the mask while lying down, and turn on the ramp feature so pressure builds gently as you fall asleep. Wear the mask for a while before bed to get used to it.
What is the most important thing for a CPAP beginner?
Mask fit. The mask is what you actually live with, and a poor fit causes the leaks, red marks, and discomfort that make people quit. Getting the right style and size, and fitting it lying down, matters more than any other early decision.