CLASS DUST EXTRACTION – Independently tested as Class L for the collection of light hazardous dusts, including soft woods, gypsum, plasterboard and Corian. Effective and reliable extraction that is suitable for lower-toxicity dusts with a workplace exposure limit (WEL) of greater than 1 mg/m3.CERTIFIED HEPA 13 FILTRATION – HEPA 13 Cartridge filter captures at least 99.95% of dust and allergen particles, down to 0.3 microns and prolongs. Additional full tank diameter pre-filter prolongs the lifespan of the cartridge filter.1 – Generates more efficient suction power than traditional 3-motor vacuum cleaners and spins 3-% faster than a standard vacuum cleaner’s motor. Providing 355 Air Watts of suction power, 65 L/second of air flow and 25.5 kpa vacuum pressure.50L HIGH CAPACITY COLLECTION TANK – Extra large 50L stainless steel collection tank for collecting large volumes of wet or dry debris. Compatible with or without dust bags. The push handle trolley makes manoeuvring a full collection tank easy.DIRECTIONAL DRAINAGE HOSE – The directional drainage hose makes emptying the tank easy and safer. Direct the hose towards a gutter to waste collection pipe to safely discard waste liquid without leakage.PARKING BRAKE – The wheels has parking brake function which can be more stable and maneuverability.INTEGRATED ON-BOARD STORAGE – Keep accessories and hoses stored neatly within reach.