A common way to implement dust control at a construction site is to build a mixing tent. The tent has its own advantages, but so does a mobile source extractor.

Mixing tent handles dust efficiently at one location

The mixing tent is a negative pressure space used for dust control. With a tent you create a dust-proof compartment in your space, and you can implement it using existing or temporary structures. This is how you separate the clean and dusty spaces.

Source extraction device protects from dust where it is created

Source extraction devices are quick and easy to deploy. Your work teams move them from one location to another as needed. Important uses for source extractors, such as CAMU, are dry-mixing of of concrete, mortar or other dry matter. Other similar extraction devices are, for example, devices for chopping, grinding and working on other materials.

Source extraction technology protects you from dangerous quartz-containing construction dust. At the same time, you also protect the construction site and the future users of the completed construction.

The mixing tent protects the environment at its location

Negative pressure units are used in mixing tents. It is important to remember to clean the filters of the negative pressure units daily. Device specific pressure generation and air volume data, as well as the amount of mixing required at the site, affect how efficient the units for the mixing tent have to be.

When selecting your negative pressure units, pay attention to the fact that the power drops significantly when the filter is loaded (i.e. dirty) with dust. Also consider the fire resistance requirements for the construction of the mixing tent and the design of the bushings.

The mixing tent with negative pressure prevents dust from spreading from the workstation to the environment. If the dry-mix bag breaks down or falls while being moved, the tent protects the environment. The drawback of the mixing tent is that the worker has to work in a small space where plenty of dust is generated. They must wear a respirator mask in the tent. Observe the maximum daily operating time set for it. Workers’ clothing collect dust in the tent, which then spreads to the clean premises.

Do not store material supplies in the mixing tent as it will make it difficult to work and the extra materials will act as a dust trap. The air in the tent is quickly filled with dust, and it will take a long time to clean. Often the tents are too small and the negative pressure is too low. As a result of the fixed location of the tent, you may also need to carry heavy, mixed lots for long distances.
Building a mixing tent requires resources, both materials and working time. The tent is a solid, space-consuming construction that is difficult to move. In most cases, the transfer is not possible without disassembling the tent  and requires a couple of employees. The tent also requires separate lighting.

Source extractor moves to where the work is done

A source extraction device, such as CAMU, is a ready-made workstation that does not have set-up costs. One employee can easily move extractors from place to place and from floor to floor. This makes it quick to change locations at the construction site and reduces the carrying of heavy mortar and other lots of ready mixes. The compact source extractor device can fit into confined spaces, where the mixing tent cannot even be built. The use of space on the site is easier.

CAMU 1200 source extractor prevents the creation of dry-mix dust at the site

Source extraction devices capture the dust before it spreads into the air and end up in your lungs. Therefore, you do not necessarily need a respirator and no dust will accumulate in your work clothes. The need for cleaning is reduced. Source extraction devices save you time and money in many ways.

However, the source extractor, such as CAMU, is unable to control all the dust generated by the transfer of materials such as mortar bags. That is why the worker has to act in front of CAMU whenever dust can be generated. So he must learn to be in CAMU’s sphere of influence, for example, when dealing with sacks.

The mixing tent works well in passive dust control, as long as the mixing booth is handled carefully, the filters are serviced daily and the negative pressure unit is large enough – in addition, remember to use a respirator.

Source extraction is active dust control. It is preventing the spread of dust at the time it is created. Source extractor save you steps as it moves to where you work.

Then, when you want to be absolutely sure that no dust is generated, build a mixing tent and roll CAMU into it. In that case, you will still have to carry heavy loads of ready mixes from your tent to the place of work.