3、System Selection
Standard Model Selection assures the most suitable & cost-effective duct model at diameters, material features, orifices, etc. Accurate & clear model definition simply represents specific duct information on drawings.3.1 Material selection
3.1.1 Series of Material
![]() |
![]() |
![]() |
3.1.2 permeability selection
Four levels in Nanosox series, non- permeated, slight- permeated, middle- permeated and large- permeated, and tem standard permeability could maximally meet different project requirements.Unique slight- permeated material with permeability of 9m3/m2/h(2.5mm/s or 0.5cfm/ft2) could control the permeating capacity to the lowest under high pressure while realizing anti-condensation and energy-saving to the best.
3.1.3 Color selection

3.2 Duct shape and diameter selection
The confirmation of duct diameter depends on airflow volume and velocity of air inlet.In order to ensure a safety and quiet operation, it is advised to design the velocity of air inlet as below:

Once the velocity and airflow volume of air inlet are confirmed, the suitable duct diameter and drawings could be done by Nanosox’ model selection software- “isox”
3.3 Selection of assembly, sub-assembly and spare parts
3.3.1 assembly
3.3.2 sub-assembly
Six types of outlet: