Abstract: The present utility model relates to an air purifier, in particular to a duct-type air purifier. To overcome the inadequacies of existing air purifiers in being unable to effectively absorb dust in high-level air indoors and taking up a user's usable space, the present utility model provides a duct-type air purifier. The purifier comprises a panel assembly, a basic-efficiency filter, a high-efficiency filter, a middle frame assembly, an air duct sealing element, a motor air duct assembly, a box assembly, an air outlet assembly and a ventilation duct. The air purifier is installed on the ceiling of a room, and can not only effectively absorb pollutants such as dust in high-level air, but also save indoor space for a user, and purify air in multiple rooms simultaneously.

Abstract: The present utility model relates to an air purifier, in particular to a duct-type air purifier. To overcome the inadequacy of existing air purifiers in being unable to supply filtered fresh air to multiple rooms simultaneously, the present utility model provides a duct-type air purifier. The purifier comprises a panel assembly, a basic-efficiency filter, a high-efficiency filter, a middle frame assembly, a motor assembly, a box, and an air output system. The air purifier is installed on the ceiling of a room, and can not only effectively absorb pollutants such as dust in high-level air, but also save indoor space for a user, and can also supply filtered fresh air to multiple rooms simultaneously.

Abstract: The present utility model relates to an air purifier, in particular to an air purifier for hanging directly on a wall. To overcome the inadequacies or existing air purifiers in being unable to effectively absorb dust in high-level air indoors and taking up a user's usable space, the present utility model provides an indoor air purifier. The air purifier comprises a box assembly, an air output reversal device, an air outlet grid, a frame assembly, a basic-efficiency filter, a high-efficiency filter, a panel assembly and a wall fixing plate. The air purifier can be hung directly on a wall, can not only effectively absorb pollutants such as dust in high-level air, but also save usable indoor space for a user.