2pcs Dyson DC28c DC33c DC37 DC39c DC53 Pre-Filter Vacuum Cleaner Motor Pre-Filter Suitable for DC28c DC33c DC37 DC39c DC53 Allergy-Free Hardwood Floors. Replacement filter for Dyson DC37 923413-01 motor protection filter can effectively absorb fine dust, pollen, pet dander, mold, bacteria, smoke, foul odors, pet dander, mold, foul odors, chemical gases, etc., allowing you to breathe more comfortably The pre-filters for Dyson DC37 pre-motor filters can be washed and used repeatedly, it is more economical. Changing the filter regularly can extend the life of the appliance Package includes 2 filters for Dyson DC37 DC33C DC39 DC28C DC53