1.Used for general ventilation
HHLfilters produced by Huahang are used in general ventilation systems and efficiency grades of the filters include, F6, F7, F8, F9 and F10, equivalent to Chinese classification of"medium","high-medium”and”sub-high”and Eurpean EU6-EU10.
2.Main characteristics
Large effective filtering area; low resistance; long service life
Materials of HHL/1 filters are 100% inflammable and the product is environment-friendly.
Small in size and suitable for compact central air-conditioning systems
HHL/1 filters use super-thin polypropylene material as filtering media. All materials of HHZ/1 filters are inflammable and this is beneficial to environmental protection and rubbish treatment. This materal is not easily broken and price of filters is also relative low. HHL/2 filters use traditional fiber glass filtersing paper. Function of filters made with this kind of filtering paper is stable and filtering ability of the filters is high.
HHL/3 filters are shock-resistant and highly reliable. The Frame of the filters is made of metal and there is metal net at the lee side of the filtering media. These filters are mainly used in filtering at inlets of turbines and centrifugal air compressors.