A portable assembly for filtering toilet bowl odors and aerosolized toilet waste which includes a housing, preferably having a removably connected first section and second section. When utilized, the housing is disposed adjacent a toilet bowl and including an inlet and an outlet. In use, the inlet is disposed in direct fluid communication with an interior of the toilet bowl and a filter assembly is disposed within housing in fluid communication with inlet. A fan assembly within the housing includes an electrical power source and is operative to direct fluid flow successively through and from said inlet, downstream through the filter assembly and therefrom to a housing exterior through the outlet, concurrent to activation of the fan assembly.

A mixed flow fan module and a portable air purifier including a mixed flow fan module are provided. The mixed flow fan module may include a fan housing having an outer surface that is curved along a circumferential direction and defining an operation space, a fan rotatably disposed inside of the fan housing, and a fan base coupled to the fan housing and configured to guide air toward the fan.

A dust collector is provided, comprising a base (1), wherein a filtering barrel (9) is installed on the upper part of the base (1), one side of the filtering barrel (9) is provided with a main fan (21), a main fan air inlet (22) extends to the inside of the filtering barrel (9) through the outer wall of the filtering barrel (9), the upper section of the filtering barrel (9) is provided with a partition plate (23) for isolating the inside of the filtering barrel (9) from top to bottom, the partition plate (23) is provided with a plurality of through holes, the main fan air inlet (22) is connected with one of the through holes, filtering devices (24) are installed in other through holes, a straight pipe (16) is installed on the upper part of the partition plate (23), the surface of the straight pipe (16) is provided with first blowback pipes (25), each of the first blowback pipes (25) faces a filtering device (24), the upper part of the straight pipe (16) is provided with a bent pipe (15), the surface of the bent pipe (15) is provided with a second blowback pipe (26), the second blowback pipe (26) passes through the partition plate (23), the upper part of the partition plate (23) is hermetically isolated, the bent pipe (15) and the straight pipe (16) are communicated with an air storage device, respectively, one side of the filtering barrel (9) is provided with an air suction port (13), the end of the air suction port (13) is provided with a third valve (131), and the lower part of the filtering barrel (9) is provided with a fourth valve (12). When the dust collector is not stopped, a dust collecting bag (304) can be replaced, which is time-saving and high in working efficiency. Using two sets of blowback systems, it is easy to clean the dust residue. Using two sets of dust collecting system, the dust collection will be not affected when blowing back. A hydraulic rod (8) is installed to facilitate transportation and movement.

A personal ventilation device and method include a first duct segment and a second duct segment both held by a support structure that is configured to be mounted on a wearer of the personal ventilation device. The personal ventilation device also includes a first nozzle mounted to the first duct segment and a second nozzle mounted to the second duct segment. The first and second nozzles are configured to be disposed proximate to opposite sides of a face of the wearer and the first nozzle directs airflow from the first duct segment across the face of the wearer to form a control volume for a breathing space of the wearer.

An air flow controller for an air cleaner and an air cleaner are provided. The air flow controller may include a fan, and a housing, the fan being provided in the housing and the housing being movable from an initial horizontal position in which the air flow controller directs air flow in a vertical direction to an inclined position in which the air flow controller directs air flow in a diagonal direction.

A mixed flow fan module and a portable air purifier including a mixed flow fan module are provided. The mixed flow fan module may include a fan housing having an outer surface that is curved along a circumferential direction and defining an operation space, a fan rotatably disposed inside of the fan housing, and a fan base coupled to the fan housing and configured to guide air toward the fan.

A portable air purifier may include an inlet configured to form a path along which air is suctioned, a filter disposed at an upper side of the inlet and configured to purify air which enters through the inlet and moves upward, a sanitizing portion disposed at a lower side of the filter, installed at a height allowing the sanitizing portion to overlap the inlet, and configured to irradiate sanitizing light toward the filter, and a fan module disposed at an upper side of the filter and configured to rotate a fan to blow air in a direction toward the upper side of the filter.

A system for improving an air-quality of a given space serviced by an exit register of an AC system including a base frame device that is configured to engage the exit register, a metal base frame section for engaging the base frame device with a perimeter of the exit register. A register cover device that is configured to magnetically engage the base frame device. The register cover device having a plurality of alternating open space portions, a plurality of air diverting fin segments, and a magnet holder implement. The magnet holder implement includes at least four magnet holders that are disposed on each end corner portion of the register cover device. At least four height adjustable magnets are disposed on each of the magnet holders, wherein each of the height adjustable magnets is configured to magnetically engage the register cover device with the base frame device.

An air cleaner is provided that may include a first air cleaning module having a first fan that generates air flow from a first suction inlet toward a first discharge outlet; a second air cleaning module having a second fan that generates air flow from a second suction inlet toward a second discharge outlet; a dividing plate provided between the first air cleaning module and the second air cleaning module; and a display provided at inside of the dividing plate and in which a light source is provided.

An air purifying system may include at least three air cleaners or purifiers capable of independently operating and a docking station to support the at least three air purifiers. Since the air purifiers may be separated or stacked together on the docking station, the air purifying system may be operated in various states desired by a user.