OCB Eco Bio Slim Filters. The new generation of filter from OCB are completely environmentally friendly and biodegradable. The pure cellulose fibres, this filters are made from Geforsteten forests covered will be protected and give you a better filtration, lessen the impact on the environment. They are not bleached so it is beige. Please don't hesitate the best of the 100% natural can be and the car experience. – Brand: OCB Eco Bio Slim 150 filter per pack, unbleached, pure cellulose fibre, biodegradable: decompose in an of course, after only 28 days. Recyclable box, printed with biodegradable ink – Dimensions: 15 x 6 mm