Aftermarket Smokestop Particle Filter Compatible with Blueair 200/300 Series, Pollen, Dust, Removal; Classic 203, 270E, 303, 201, 250E, 215B, 210B, 205

Expensive but original

Very expensive product and don't know genuineness of the product

Good filters, keep air clean.

The filter is very effective for eliminating the odor, especially when you are suffered from smoke or paint smell in your home. I have a neighbor that smokes everyday and the strong smell came to my place even at midnight. But this smokestop filter solved my problem and works out pretty well. It says officially that the filter has to be replaced after half a year if you turn on the machine 24 hours a day and 7 days a week. However, as for my personal experience, it could effectively work even after 8-9 months. Highly recommend to those who need to eliminate bad odors.

Although the real deal is a lot more expensive - but dont' forget they do last a good few months, providing you're not a heavy smoker. We have also tried the knock off version which was half the price, although it was ok, it didn't last very long and didn't work as well. Then we couldn't find the "cheaper version" anymore and any that are slightly cheaper, isn't cheap anymore, so even if it is £20 cheaper it isn't really worth it if you want your money's worth that is.Plus you can really tell the difference between a genuine one and one that is not. It takes in more of the smell. So i will give them that!

Works well

I have antisocial neighbours who chain smoke around the building. Their smoke spreads into everyone else's apartment. They are very aggressive and threatened another neighbour when she asked them to not smoke by her window. I bought a Blueair and these filters. They work really well. Recommended if you suffer from second hand smoke.