The main filter with 1.7m² filter surface, each of the HEPA filter is independently tested and certified. TS1000 can separate the fine dust with efficiency 99.99% @ 0.3μm, ensuring your work space is a clean and safe environment.TS1000 is recommended for small grinders and hand held power tools.Comes with 38mm*5m hose, 38mm wand and floor tool. Include a 20m length continuous folding bag for dust-free handling and disposal.