Provided is an air purifier combined with an aromatizing device, including at least one air purifying unit having a lower housing, an upper housing, a fan, a filter, a filter cover, an aromatizing device, and a bottom cover. The lower housing is a hollow housing having a lower accommodating space for receiving the filter and the aromatizing device and is provided with air inlets at circumferences thereof for allowing external air to enter the air purifying unit. The filter is a hollow and cylindrical filter body having a hollow space for filtering external air. The aromatizing device is disposed within the hollow space of the filter for aromatizing purified air from the filter to generate purified and aromatized air. The upper housing is a hollow housing having an upper accommodating space for receiving the fan and is provided with air outlets at circumferences thereof for discharging purified and aromatized air.

An adjustable filter track system for a heating, ventilation, and/or air conditioning (HVAC) system includes a filter track including a guideway and a bracket that form a recess configured to receive a first filter in a first configuration of the adjustable filter track system, a plurality of receptacles formed in the guideway and aligned along a length of the guideway, and a plurality of inserts, where, in a second configuration of the adjustable filter track system, each insert of the plurality of inserts is configured to be disposed in a corresponding receptacle of the plurality of receptacles and extend outwardly from the guideway to secure a second filter between the plurality of inserts and the bracket, where the second filter has a different thickness than the first filter.

A fluidized bed spray drying system for drying liquid into powder including an elongated drying chamber, a spray nozzle assembly at an upper end of the drying chamber and a powder collection chamber at a lower end of the drying chamber. A drying gas inlet is provided in the powder collection chamber and a drying gas outlet is provided at an upper end of the drying chamber. A plurality of cylindrical filter elements at the upper end of the drying chamber are in communication with the exhaust gas outlet for filtering drying gas borne powder from drying gas exiting the drying chamber.

The present disclosure generally relates to an air filtration system, an air filtration device, and an air filtration module for removing ultra-fine particles (UFPs), pathogens (e.g., viruses, bacteria, etc.), volatile organic compounds (VOCs), oxides or odors. The systems, devices, and filter modules of the disclosure perform at enhanced filter and power efficiencies. An air filtration system is provides that includes a docking base for receiving a removable, portable air filtration device in fluid communication with the docking base. In certain embodiments, the air filtration system further includes the removable, portable air filtration device. The portable air filtration device may optionally include an air filtration module.

Disclosed herein is an air cleaner capable of being coupled or separated in a vertical direction to improve space utilization. An air cleaner may include a first air cleaning module provided with a first connection unit, and a second air cleaning module detachably coupled to the first air cleaning module and provided with a second connection unit, wherein the second connection unit is configured to be detachably coupled to the first connection unit, and configured to be rotatable with respect to the first connection unit when the second connection unit is coupled to the first connection unit.

The present disclosure relates to a tumble dryer (1) with a filter arrangement (12) located in a tumble dryer process air flow (21) for removing lint from process air leaving tumble dryer drum. The filter arrangement comprises a first coarse-mesh filter (25) and a second fine filter (27). A first sensor (41) detects a correct positioning of the first filter in the tumble dryer, and a second sensor (33) detects a pressure drop over a process air flow path comprising the second filter. A control arrangement (45) is configured to initiate a disabling operation which disables the fan arrangement (12), if the first filter is not correctly positioned in the tumble dryer or if the pressure drop over the second filter exceeds a predetermined threshold value.

A ventilation device for filtering air and for separating water aerosols from air may include at least one filter element, at least one housing, at least one fan, and at least one flow adapter. The filter element may be secured in the housing such that air is flowable through the housing from an inlet opening of the housing to an outlet opening of the housing in a flow direction. The fan may be secured on the outlet opening downstream of the housing in the flow direction. The flow adapter may be secured on the inlet opening upstream of the housing in the flow direction. A coupling frame may be secured in an airtight manner between the housing and the flow adapter transversely to the flow direction. The filter element may have a circumferential sealing edge that seals the housing around the inlet opening to the coupling frame.

The present disclosure generally relates to an air filtration system, an air filtration device, and an air filtration module for removing ultra-fine particles (UFPs), pathogens (e.g., viruses, bacteria, etc.), volatile organic compounds (VOCs), oxides or odors. The systems, devices, and filter modules of the disclosure perform at enhanced filter and power efficiencies. An air filtration system is provides that includes a docking base for receiving a removable, portable air filtration device in fluid communication with the docking base. In certain embodiments, the air filtration system further includes the removable, portable air filtration device. The portable air filtration device may optionally include an air filtration module.

A vertically oriented dust collector configured to filter dry particulate matter from an air stream comprises a housing containing at least one cartridge. Each cartridge comprises a filter pan having an opening with a filter incorporated into the opening. The filter pan has at least one alignment opening. The housing further comprises at least one pair of rails oriented parallel to each other within the housing onto which each cartridge is mounted and at least one alignment block sized and shaped to correspond to the alignment opening of the filter pan. The alignment block is positioned such that when the cartridge is installed in the housing, the alignment opening of the filter pan aligns with the alignment block.

A method for replacing a filter in a dust collector includes: accessing a filter carriage, at least one filter being connected to the filter carriage and being disposed inside a dust collector housing of the dust collector; lowering the filter carriage, the at least one filter being lowered with the filter carriage; translating the filter carriage out of the dust collector housing with the at least one filter; removing the at least one filter from the filter carriage; placing at least one other filter on the filter carriage; translating the filter carriage into the dust collector housing with the at least one other filter; and raising the filter carriage to lock the at least one other filter into an operational location.