Cart “Vent Filter Screen, to fit Portable Oxygen Concentrator” has been added to your cart. Continue shopping Remove item Thumbnail image Product Price Quantity Subtotal × Removable Bag for Polo Rollator $139 Removable Bag for Polo Rollator quantity $139 × Vent Filter Screen, to fit Portable Oxygen Concentrator $49.99 Vent Filter Screen, to fit Portable Oxygen Concentrator quantity $49.99 Update cart Go To Checkout ► Cart totals Subtotal $188.99 Total $188.99 (includes $12.64 Tax) Go To Checkout ►