A proprietary company is a form of privately held company in Australia and South Africa that is either limited or unlimited.However, unlike a public company there are, depending on jurisdiction, restrictions on what it can and cannot do. proprietary company is a form of privately held company in Australia and South Africa that is either limited or unlimited.
Basics. Air scrubbers remove pollutants from air or smokestacks. Industrial scrubbers are divided into two categories, wet scrubbers and dry scrubbers.Both act in the smokestack and often use limestone, which chemically is a base, as a key ingredient because it reacts with sulfur dioxide and other acidic pollutants.asics. Air scrubbers remove pollutants from air or smokestacks. Industrial scrubbers are divided into two categories, wet scrubbers and dry scrubbers.
1 Cold Air Diffuser â A cold air diffuser uses room-temperature air to blow the oil into a nebulizer where it is vaporized. 2  This diffuser can diffuse quickly and efficiently; however it is noisy and can be a little messy! 3  It also can not effectively diffuse heavier, thicker oils and it is hard to clean.