EverFlo Oxygen Concentrator Filters & Accessories

The Respironics EverFlo is one of the most widely used stationary oxygen concentrators for home oxygen therapy, prized for its quiet operation, low power draw, and minimal maintenance. Keeping one running reliably comes down to a simple but essential habit: replacing the filters on schedule. That's where the right replacement kit matters.

The Spirit Medical EverFlo Plus Filter Kit (CFK-RESP-EFLO+) includes one intake HEPA filter and one final barb filter with a stepped fitting sized 3/16 inch x 1/4 inch — the two elements that protect both the concentrator's internal sieve beds and the purity of the oxygen delivered to the user. The intake filter captures airborne dust and particulates before they reach the compressor, while the final filter provides a last stage of filtration on the outlet side.

When and Why to Replace EverFlo Filters

A common question from patients and caregivers is how often these filters need changing. The final/outlet filter is generally replaced periodically as part of routine service, and the coarse intake foam filter should be checked and cleaned or swapped based on the household environment — homes with pets, smoke, or heavy dust will clog filters faster. Neglecting them forces the concentrator to work harder, which can reduce oxygen output and shorten the life of the unit. Fresh filters help maintain the concentrator's rated purity and keep airflow unrestricted.

Because these are consumable parts, it's worth keeping a spare kit on hand so a scheduled change never gets delayed. Always confirm your device model, as the EverFlo and EverFlo Q share the same platform but accessories should match your specific unit.

Reliable oxygen therapy depends on more than the machine itself. Explore related supplies to complete your setup and keep therapy comfortable and consistent day to day.

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Spirit Medical Everflo Plus Filter Kit