Metabo Corp. has introduced the ASR 35, a heavy-duty vacuum that features automatic electromagnetic vibration filter cleaning. The ASR 35 wet/dry vac is suited for the collection of fine concrete dust created when grinding or cutting. It works equally well in the shop collecting large volumes of debris or nonflammable liquids. The ASR 35 generates an airflow rate of 130 cubic feet per minute and has a 9-gallon capacity that allows for longer intervals between unit cleanings. The vacuum is available in a HEPA version for toxic dust applications.