Festool 200340 HEPA Filter for CT-SYS is a replacement main filter for Festool dust extraction systems. This is a HEPA main filter designed for use with the Festool CTL SYS dust extractor. Model Number: 200340. If you rely on compact dust extraction for shop work or punch-list cleanup, this filter matters because it helps the vacuum capture fine dust instead of sending it back into the air.

The headline spec here is filtration performance. Festool states that this HEPA main filter captures 99.99% of particulate matter down to 0.3 microns. In practical terms, that means it is built to deal with the fine dust that hangs in the air and gets everywhere after sanding, cutting, and general cleanup. For anyone working indoors, in finished spaces, or around customers, cleaner exhaust air is not just a nice extra. It is part of keeping the job cleaner and more manageable.

This filter is not a generic add-on. It is a replacement filter element made for the Festool CTL SYS platform. That fit matters because proper sealing and proper installation are what let the extractor do its job. When the main filter is loaded up or overdue for replacement, suction and overall dust collection can suffer. Swapping in the correct filter is one of the easiest ways to keep your extractor performing the way it should.

Material matters with filters, too. The filter material is fiberglass fibers, and the filter is listed as non-washable. That tells you this is a replace-it maintenance part, not a rinse-and-reuse setup. For pros, that is usually the better tradeoff anyway. You get consistent filtration performance without guessing whether a cleaned filter is really ready to go back into service.

The compact CTL SYS extractor is popular because it is easy to move from room to room and job to job. A proper main filter supports that whole value proposition. Whether you are doing service work, trim punch-out, small-space remodeling, or shop cleanup around fine dust, the extractor only performs as well as the filter inside it. Keeping a fresh Festool 200340 HEPA Filter for CT-SYS on hand makes sense if downtime, weak suction, or dirty exhaust air costs you time.

This replacement HEPA filter is a good fit for woodworkers, remodelers, finish carpenters, installers, and serious DIY users already invested in Festool dust extraction. It is especially relevant for anyone working in occupied homes, finished interiors, or enclosed work areas where dust control matters more. If you own the CTL SYS and want to maintain the machine the right way, this is the filter you buy.

Festool 200340 HEPA Filter for CT-SYS keeps a small extractor working like it should

If you own the CTL SYS, this is one of those maintenance parts that is boring right up until your vacuum stops pulling well and starts throwing more dust back into the room.

• Who it's for: CTL SYS owners who care about dust control in shops, finished homes, and tight indoor workspaces.
• Why it stands out: It is the correct Festool replacement filter, it is HEPA rated, and Festool states capture down to 0.3 microns at 99.99%.
• Worth knowing: This is a replacement filter only, and supplementary data lists it as non-washable, so plan on replacing it instead of trying to clean and reuse it.

• What extractor is this filter made for? It is listed as suitable for the Festool CTL SYS dust extractor.
• Is this a HEPA filter? Yes. Festool identifies it as a HEPA main filter.
• How fine is the filtration? Festool states the filter captures particulate matter down to 0.3 microns.
• Can this filter be washed and reused? It is non-washable.