At Sound Oxygen Service (SOS) we help you sleep, breathe, and live better!

SOS is the largest independent Respiratory Equipment provider in Washington State. We provide Sleep Apnea (CPAP / BiLevel), Ventilator, and Oxygen equipment.

We offer direct billing to most insurance plans, 24/7 on-call service, a video and resource center, and online ordering for supplies.

We have offices across Washington State in Auburn, Bellevue, Bellingham, Moses Lake, Omak, Poulsbo, Puyallup, Spokane, the Tri-Cities, Wenatchee, and Yakima.

Please stop by a branch office, contact us or call 877-269-0405 so we can help you and/or those you care for.

Our products provide you with less worries and more independence!

Sleep Apnea Therapy and Services

We provide a full suite of Sleep Apnea solutions with over 20 different types/styles of mask, each in a variety of sizes.

Find out more

Oxygen Therapy and Services

We provide a full suite of oxygen solutions to meet all of our customers’ and patients’ needs.

Find out more

Ventilator Therapy and Services

We specialize in providing expert and compassionate support for those who require home ventilator support.

Find out more


We offer nebulizers for plug-in and battery-powered use.

Find out more