An air cleaner includes a case, an air inlet, an air outlet, a grill covering the air inlet to filter airborne oil droplets, a fan to suction air through the air inlet and discharge air out of the air outlet, a roll filter provided between the grill and the fan to filter oil mist, and a filter roller to cut the roll filter. The roll filter includes a roller and a filter sheet wound around the roller, and the filter sheet may be unwound to extend behind the grill. When the filter sheet becomes dirty, the roll filter is further unwound so that a clean section is provided behind the grill, and the filter cutter may cut off the dirty section. During cutting, a clamp holds down the filter sheet. The case includes a slit through which the dirty section of the filter sheet passes for discarding.

The invention provides a personal filtration apparatus with a multi-stage filter. In some embodiments each section can be individually replaced for reduced cost

An air freshener is disclosed. The air freshener includes a body case defining the air freshener, the body case having a filter installation opening formed in one side thereof, a filter housing disposed in the body case, a drawer including a frame forming therein a drawer opening, through which air passes, and a filter cover coupled to the frame for covering the filter installation opening, and a filter module separably located on the frame for filtering the air that has passed through the drawer opening. The drawer is configured to be withdrawn from the inner space of the filter housing through the filter installation opening.

An air freshener is disclosed. The air freshener includes a body case defining the air freshener, the body case having a filter installation opening formed in one side thereof, a filter housing disposed in the body case, the filter housing having a power terminal disposed therein, a drawer configured to be withdrawn from the inner space of the filter housing through the filter installation opening, and an electric dust collector separably located in the drawer, the electric dust collector having a power-receiving terminal disposed therein, wherein the power terminal contacts the power-receiving terminal in the state in which the drawer is settled in the inner space of the filter housing.

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 filter manufacturing method includes: folding a filter media up and down and forming a wrinkle shape composed of a plurality of bent parts and a connection part connecting adjacent bent parts among the plurality of bent parts; and forming a conductive coating layer pattern on the filter media. The filter manufacturing method further includes: electrically connecting a first end and a second end of the conductive coating layer pattern to a first power source. In particular, the conductive coating layer pattern includes a plurality of parallel patterns, and the plurality of parallel patterns are formed to be positioned on the connection part.

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.

An apparatus configured to purify air and sanitizing including a main base including one or more buttons configured to operate the apparatus, a lid attachable to the main base and that includes one or more ventilation perforations to intake air and an orifice to output purified air, a filter adjacent to the one or more ventilation perforations and enclosed in the lid, wherein the filter is configured to remove at least bacteria from atmospheric air and extract purified air, a fan configured to intake atmospheric air into the filter and blow purified air extracted from the filter outside of an orifice of the lid, a tank configured to store liquid, wherein the liquid includes at least liquid sanitizer, a pump configured to output liquid stored in a tank, and a cavity section that includes an outlet configured to output the liquid sanitizer in response to actuation of the pump.

A self contained, 1 V to 550 V powered UVC device used to sterilize spaces like vehicle cabins or indoor rooms or spaces, while providing the ability to monitor both pre and post sterilization. While operating, the device would collect, on suitable gathering/testing media, both air that has been sterilized, and unsterilized air that passes through the media, allowing the media to be tested for the presence of both active pathogens that have not yet been killed from the device, as well as killed pathogens in the sterilized area. The UVC and media components may be integrated into one unit, or be powered and used both in combination, or as separate devices performing the sterilization and the sampling media. At the termination of UVC sterilization, additional different media has the now sterilized cabin or room air circulated through it, and with further media testing and evaluation, the efficiency/effectiveness of the sterilization process can be audited, and system operators can be advised.