1, high-efficiency air filter initial resistance shall not exceed 10% of product sample resistance.
2, the design, according to the initial resistance of the end of the second resistance, as the calculation of the filter resistance.
3, high efficiency air filter should not be used alone, high efficiency air filter set in the end of the air conditioning system.
4, in the general non-parallel flow clean air-conditioning system to use more combination of filter outlet.
5, the amount of dust capacity manufacturers should provide. High-efficiency filters are detected at the factory. Other requirements according to user needs.