Features: Atomstack maker D2 air purifier replacement element, an 8-layer filter element specially developed for laser cutting, which can effectively filter the odor and harmful substances generated by laser cutting, with a filtration rate of 99.97% (atomstack laboratory test data). No need to worry about smoke exhaust and air pollution, you can work safely in your garage, basement, or workshop. Easy to replace: just 3 steps, no need to disassemble the circuit, and quickly replace the filter element in five minutes. Contribute to environmental protection: Discharging the cutting waste gas directly into the atmosphere will cause more pollution, so use an air purifier to make the air fresh. What You Get: 1 x AP2 Air Filtration Replacement. Specification: Model: AP2 For: D2 Air Purifier Package Size: 14x11x11cm/5.5x4.3x4.3in Package Weight: 1600g/3.5lb Packing List: 1 x AP2 Air Filtration Replacement