Haat offers a variety of scrubbing systems, air pollution control equipment or flue gas treatment systems ranging from simple dry dust collectors to units that can meet even the most stringent emission limits. An example of extreme emission control is systems supplied by Haat for radioactive waste which include HEPA filters to reduce dust values to below 1 mg/Nm3.

Some manufacturers offer scrubber 'boxes' claiming that they are venturi types, but these are mostly inefficient and not recommended.

For animal or medical wastes, 2 chamber incinerators will usually be enough to satisfy the emission limits of most regulatory bodies. However, if desired, different options are available to meet local clean air regulations. These include broadly the following: