1. Material thickness:Different materials have different thicknesses and different air filter costs.
2. When purchasing an air filter, you need to pay attention to the air-conditioning indoor and outdoor cabinet materials. The main material of the cabinet is optional according to the price of different air filters: cold-rolled steel plate multi-layer pickling electrostatic spraying or all stainless steel.
3. The appearance and size of the air filter:Just pre-size the site to a size of about 10mm, but make sure that the wall is of the same vertical size, otherwise the air filter position will be too small. The air filter housing cannot be installed in the specified location.