Avoid this place at all costs - pushy, unprofessional sales people only interested in commissions and deaf to customer concerns. A thinly veiled collusion between themselves and the doctors who recommend them. Everyone gets a piece of the action, and if by chance you visit a sleep lab, you will definitely walk out requiring a product these vultures pedal no question about it. And as extra security for them, you must be in compliance with using their recommended device or they threaten to take your driving license away. BEWARE of having anything to do with these vultures. Go to a hospital run sleep analysis practice and let them direct you to whatever assisted device you might need. Sometimes all you need is a cheap dental device which can realign the airways and work great, check the internet to verify this. But you'll never see these available here because they are like auto dealers who constantly want to drag you back to the dealership to work on your vehicle (in this case CPAP machine) and charge for adjustments, tell you a new $300 plastic hose is needed etc etc etc. You've been warned!