A symmetric pair of mounting brackets for mounting one of a plurality of air filters to a mounting plate of an air conditioner unit are provided. The mounting brackets each define a plurality of mounting surfaces with equidistantly space mounting holes. The mounting surfaces are spaced apart from a plurality of retention surfaces, with the distance between each respective mounting surface and retention surface varying to accommodate a different filter size such that the air conditioner may operate using different filter sizes by simply changing the installation orientation of the mounting brackets.

A symmetric pair of mounting brackets for mounting one of a plurality of air filters to a mounting plate of an air conditioner unit are provided. The mounting brackets each define a plurality of mounting surfaces with equidistantly space mounting holes. The mounting surfaces are spaced apart from a plurality of retention surfaces, with the distance between each respective mounting surface and retention surface varying to accommodate a different filter size such that the air conditioner may operate using different filter sizes by simply changing the installation orientation of the mounting brackets.

An air management device may include three independently operated primary impellers 131, 131′, 131″, and drawn-in air is discharged through discharge ports 15′-1, 15′-2, 15′-3 provided in the front plate 15 of the housing 10. Louvers 141, 142, 143installed downstream of the air flow and discharge ports 15′-1, 15′-2, 15′-3 may be independently opened or closed to provide discharge of the air to the surrounding environment. Further, at least one retractable or pop-up fan may be provided. A bottom inlet 11′ may be formed on the bottom plate 11 of the housing 10 facing the floor of the living space above a predetermined distance. The replaceable filter 300 may be installed to filter the air sucked through the bottom inlet 11′, and may be drawn in and out of the housing 10.

An air management device may include three independently operated primary impellers 131, 131′, 131″, and drawn-in air is discharged through discharge ports 15′-1, 15′-2, 15′-3 provided in the front plate 15 of the housing 10. Louvers 141, 142, 143installed downstream of the air flow and discharge ports 15′-1, 15′-2, 15′-3 may be independently opened or closed to provide discharge of the air to the surrounding environment. Further, at least one retractable or pop-up fan may be provided. A bottom inlet 11′ may be formed on the bottom plate 11 of the housing 10 facing the floor of the living space above a predetermined distance. The replaceable filter 300 may be installed to filter the air sucked through the bottom inlet 11′, and may be drawn in and out of the housing 10.

A component used in an air conditioner includes a substrate and a nano-coating formed on a surface of the substrate, wherein the nano-coating includes a lower coating formed on the surface of the substrate; and an upper coating formed on the upper surface of the lower coating, a coating composition of the upper coating includes nanoparticles having a diameter of 10 nm to 30 nm, and an interval between adjacent nanoparticles among the plurality of nanoparticles located on a surface of the upper coating is 10 nm to 30 nm.

A component used in an air conditioner includes a substrate and a nano-coating formed on a surface of the substrate, wherein the nano-coating includes a lower coating formed on the surface of the substrate; and an upper coating formed on the upper surface of the lower coating, a coating composition of the upper coating includes nanoparticles having a diameter of 10 nm to 30 nm, and an interval between adjacent nanoparticles among the plurality of nanoparticles located on a surface of the upper coating is 10 nm to 30 nm.

An air filter for a heating, ventilation and air conditioning, HVAC, system, the air filter comprising: a housing having an inlet opening and an outlet opening, configured for air to flow along an air flow route between the inlet opening and the outlet opening; a supply spool and a take-up spool mounted to the housing on opposite sides of the air flow route; one or more filter guides mounted to the housing between the supply spool and the take-up spool; a strip of filter medium extending from the supply spool to the take-up spool via the one or more filter guides, with a portion of the filter medium extending across the air flow route; and a driver arranged to advance the filter medium to change the portion of the filter medium extending across the airflow route. Air filtration systems, HVAC devices and HVAC systems comprising the air filter.

A fresh air module and an air conditioner are provided. The fresh air module has a housing and a fan assembly. The housing has a fresh air duct inside the housing. The fan assembly has a motor and a wind wheel disposed in the fresh air duct. The motor has a motor body and a motor shaft. The motor shaft drives the wind wheel to rotate, so as to guide airflow to flow through the fresh air duct. The motor cover is arranged on the housing and outside of the fresh air duct. A motor accommodating cavity is defined in the motor cover and accommodates the motor body. A partition member is formed between the motor accommodating cavity and the fresh air duct to separate the motor accommodating cavity from the fresh air duct. The motor shaft penetrates through the partition to connect with the wind wheel.

Disclosed are a fresh air module and an air conditioner. The fresh air module has a housing, a fan assembly and a purification assembly. The housing is provided with a fresh air inlet and a fresh air outlet. A fresh air duct is formed in the housing and communicates the fresh air inlet with the fresh air outlet. The fan assembly is mounted in the fresh air duct. The purification assembly is disposed in the fresh air duct and located at one end of the fan assembly in an axial direction of the fan assembly to correspond to an air inlet end of the fan assembly.

An air conditioner with an air purifying function includes a housing having an air inlet and an air outlet thereon. An air conditioning assembly and an air purifying assembly are disposed in the housing. The air conditioning assembly includes an air conditioning flue. A first fan and a heat exchanger are disposed in the air conditioning flue. The air conditioning flue connects with the air inlet and the air outlet respectively. The air purifying assembly includes an air purifying flue. A second fan and an air filter screen are disposed in the air purifying flue. The air purifying flue connects with the air inlet and the air outlet respectively.