CSpring Blackout Cover for MK3 & MK2

CSpring UVC Light-Blocking & Dust Cover — Compatible with MK3 and MK2

If a glowing water chamber has ever kept you (or your partner) awake at night, this cover was made for exactly that problem. The CSpring's built-in UVC sanitizing light does keeps your CPAP humidifier water clean, but that same light can turn your nightstand into a nightlight you may not want.

This fitted fabric sleeve slips over your CSpring MK3 or MK2 in seconds and seals in every trace of visible glow, without powering down or interrupting the unit's sanitation cycle. Your water chamber keeps doing its job and your bedroom stays properly dark. It's a simple accessory that solves a surprisingly common complaint among CSpring users, especially light-sensitive sleepers and anyone sharing a bed with someone who isn't using CPAP therapy.

Beyond blocking light, the breathable fabric shell adds a layer of everyday protection, keeping dust, pet hair, and more off the device between uses. The snug, no-strap design means there's nothing to buckle or adjust — just pull it on and go.

Key Features and Benefits

• Blocks 100% of Visible UVC Glow: Fully encloses the sanitizing LED so no light escapes, even in a pitch-black room.
• Sanitation Cycle Runs Uninterrupted: The cover doesn't block airflow or disable the device, allowing your water chamber keeps sanitizing normally underneath.
• Durable, Fray-Resistant Fabric: Built from a tough, low-stretch material designed to hold its shape and light-blocking ability through nightly use.
• No-Strap, Slide-On Fit: Contoured specifically for MK3 and MK2 shapes. No fasteners, Velcro, or adjustment needed.
• Dust & Debris Protection: Adds a protective barrier against household dust and lint when the device sits out on a nightstand or shelf.
• Better for Shared Bedrooms: Reduces light disturbance for partners who aren't using the CPAP system themselves.
• Easy Care: Hand wash or wipe down with a dry cloth — no special maintenance routine required.