AC150H is a Class H certified one motor wet and dry HEPA dust extractor with Bersi innovated auto clean  system, 38L tank volume. There are 2 filters rotate self clean to maintain high suction always. The HEPA filter captures 99.95% of particles at 0.3 microns. It is a portable and lightweight vacuum cleaner for liquids and dry fine dust both, the machine will shut down automatically when reach to the liquids maximum fill level. Ideal for power tool requires continuous working, especially suited for extracting concrete and rock dust in construction site and workshop.