I think someone here asked about replacement filters. I was trying to wait for Tekno to release theirs but mine was damaged last weekend and I needed to replace it with something. I bought a pair of Protek "DustBuster" OFNA/HoBao air filters. http://www.amainhobbies.com/product_...o-Air-Filter-2

The inner filter seems identical if not a hair thicker and the outer looks to be a little thinner but this should be a good replacement until Tekno has them available.