Profile: Micronfilter USA specializes in offering air filtration and liquid filtration products. Our Quad unit air filter feature small dimension. It is easy to use and extremely efficient, and represents the addressed solution for aspiration, filtration and deodorization of work premises where fumes, solvent, vapors and aerosol are generated by welding processes. This air filter is designed according to up-to-date technologies, suitable in industrial and handicraft field, where portability and small size are requested to the filtering units.