Nispira Oxygen Intake Replacement Filter Compatible with Philips K3B, Olive 8L/10L, DeVilbiss DS 505/515 (Pre-2003 with Muffler) & 525 DS Series Oxygen Concentrators

Keep your oxygen concentrator's air intake clean with the Nispira replacement intake filter — designed to fit a range of Philips, Olive, and DeVilbiss models as part of routine maintenance. Product Overview This intake replacement filter is designed for compatibility with several oxygen concentrator brands and models, including the Philips K3B, Olive 8L/10L units, DeVilbiss DS 505 and 515 (pre-2003 models with muffler), and the DeVilbiss 525 DS series. It's intended for the air intake side of the system, helping trap dust and particulates before air enters the unit. The filter features a structured internal design that maintains its shape during regular use, and installs without additional tools. Product Specifications Specification Details Compatible With Philips K3B; Olive 8L/10L; DeVilbiss DS 505 & DS 515 (pre-2003 models with muffler); DeVilbiss 525 DS Series Height Approx. 3.75" Width Approx. 2.36" Depth Approx. 2.67" Inlet/Outlet Diameter Approx. 0.83" Housing Structured internal design, holds shape during use Installation Tool-free Pack Size 2 Pack Compatibility Notice This filter is designed to fit multiple oxygen concentrator brands that share the same intake filter dimensions. Please check the details below against your unit before ordering: Philips K3B oxygen concentrators Olive 8L and 10L oxygen concentrators DeVilbiss DS 505 and DS 515 — pre-2003 models equipped with a muffler only. Later DS 505/515 units without a muffler, or post-2003 production, may use a different filter and are not covered by this listing. DeVilbiss 525 DS Series oxygen concentrators Because "K3B," "8L/10L," and "DS" model numbers are used across different manufacturers, please compare the dimensions and inlet/outlet diameter above with your original filter — or check your unit's manufacture date and model plate — before purchasing to confirm fit. Installation Turn off and unplug the oxygen concentrator before beginning. Locate the intake filter compartment on your unit (refer to your device manual if unsure). Remove the old or worn filter. Insert the new Nispira filter, aligning it with the intake opening — no tools required. Power on the unit and confirm the filter is seated securely. Filtration and Maintenance Intake filters accumulate dust and particulates over time, which can affect airflow and machine performance. Periodic replacement is recommended based on your usage conditions. Inspect the filter regularly and replace it if visibly soiled or if you notice reduced airflow. Disclaimer Nispira is an independent replacement parts brand. This product is not manufactured or sold by Philips, Olive, DeVilbiss, or any original equipment manufacturer (OEM), and Nispira is not affiliated with, endorsed by, or sponsored by these brands. All brand names and trademarks referenced are used solely to indicate compatibility.