APPLICABLE MODLES - The vacuum cleaner bags 6.959.130 are 100% compatible with the vacuum cleaners A 2201, A 2204, A 2204 AF, A 2206 X, A 2236 X pt, A 2251 Me F1, A 2254 Me, A 2534 pt , A 2554 Me, A 2 Me, A 604, A 2654 Me, A 2656 X Plus, WD3, MV3, SE 4001, SE 4002, WD 3.150, WD 3.200, WD 3.230, WD 3.250, WD 3.300, WD 3.300 M, WD 3.310, WD 3.370, WD 3.500, WD 3.500 P, WD 3.5000 40, WD 3.600, WD 3.800, A 2231 PT. HIGH QUALITY - Dust bags use high quality kraft paper and polypropylene filter membrane to better protect the vacuum cleaner. Premium wd3 vacuum bags have a thicker design on the cardboard to prevent sagging, they are durable and sturdy, saving you worry and money. DOUBLE FILTRATION - The wd3 vacuum bag has a double density structure, which can effectively inhibit the survival of bacteria, and the dust filtration rate is much higher than that of the cloth bag. This vacuum cleaner bag can also prevent large particles of dust from entering and damaging the motor cavity, thus ensuring the vacuum's lifespan. AIR PURIFICATION - 6.959-130.0 bags can not only retain ordinary indoor dust, but also allergenic fine dust such as pollen, mite excrement, bacteria and in this karcher vacuum bag, making thus the effect of purifying the air and taking care of the health of your family at all times. ENVIRONMENTAL HEALTH - You will receive 10 vacuum cleaners wd3 disposable, ecological and hygienic bags. To ensure the vacuum's cleaning performance, we recommend replacing the vacuum bags every 13 months. If you are not satisfied of our product, please contact us and we will solve your problem until you are satisfied.