Passive dust control
On-site dust control includes active, passive and remedial measures. All of these are needed, but the focus should be on active dust control. Passive dust control is needed to remedy the shortcomings of active dust control.
In passive dust control, a construction worker is not an active participant, but dust control works no matter what individual workers do. For example, passive dust control may include site ventilation, compartmentation, negative pressure units or general air purifying. Also mixing tent are passive dust control. Read more in our blog.
With passive dust control, workers control the ’airspace’ of the site. The most important thing is to keep dusty and dust-free work in separate spaces. Clean filtered air from the outside is brought into the construction site, and it is directed through clean spaces to dirty spaces. Finally, the air is filtered out. This removes fine dust from the air, which is not captured by active dust control with the source extraction devices. The flow of air at the construction site is controlled so that dust cannot spread uncontrollably.
In passive dust control, air can also be recycled indoors, whereby the filters of the air purification devices must be able to adhere to small particles. Passive dust control corrects human errors in the long-run, i.e. it acts as a back-up system for active dust control.
The role of active and passive dust control measures in the processes will increase. Only in this way will we be able to guarantee a clean and healthy working environment for construction workers in addition to a clean completed building. That is why it is worth investing in active, but also passive dust control, and reducing remedial action, i.e. less cleaning.
Read about what is active dust control.