An effective ethanol emission treatment system usable at buildings such as spirit aging warehouses which biologically removes ethanol prior to air escaping to the atmosphere is disclosed. The system can be used either with or without imparting negative pressure on the building to draw the ethanol vapors into the treatment system. The system provides efficient removal of ethanol from large volumes of air having relatively low ethanol concentrations.

A blower including a blowing unit that suctions and blows air, and at least one of a first venting member that has a first venting hole through which air blown from the blowing unit passes and that includes a coating film including a manganese oxide-based catalyst, activated carbon, a polyacrylate-based dispersant, and a resin, provided on a wall surface of the first venting hole, or a second venting member that has a second venting hole through which air suctioned into the blowing unit passes and that includes such a coating film provided on a wall surface of the second venting hole.

A blower including a blowing unit that suctions and blows air, and at least one of a first venting member that has a first venting hole through which air blown from the blowing unit passes and that includes a coating film including a manganese oxide-based catalyst, activated carbon, a polyacrylate-based dispersant, and a resin, provided on a wall surface of the first venting hole, or a second venting member that has a second venting hole through which air suctioned into the blowing unit passes and that includes such a coating film provided on a wall surface of the second venting hole.

Ionization systems and methods include moving air into contact with one or more ion generators and then past an ozone removal assembly to remove at least some ozone from the air. The air may be moved by a fan and may be filtered before contacting the one or more ion generators. The amount of one or more of the following of the air may be measured: the amount of ions, particulates, temperature, humidity, and other relevant factors. The ionization amount may be adjusted based on one or more of the measured amounts. The one or more ion generators and ozone removal assembly may be constructed as part of a single unit so they can be removed and replaced easily.

A blower including a duct configured to allow air to flow in and out and a plurality of blades disposed to be parallel to the duct. Each of the blades including a first part, a second part, and an airflow generator configured to generate airflow in a direction from the inlet to the outlet by applying a voltage between the first electrode and the second electrode which are disposed between a first electrode on a side of the inlet, a second electrode on a side of the outlet, and a dielectric. In a cross section of the blade in the airflow direction when cut in a cross section perpendicular to each of the blades, the first part has a thickness decreasing in a direction toward the inlet and the second part has a thickness decreasing in a direction toward the outlet.

The application provides an air purifier comprising a shell assembly having air inlets and air outlets, and a filter assembly, an air inflow guide assembly, a fan and a diffusion air outflow assembly sequentially arranged from back to front. The filter assembly can purify air entering the filter assembly via the air inlets and flowing through the filter assembly. The air inflow guide assembly defines a guide channel between the filter assembly and the fan. The fan generates an air flow that flows into a first receiving cavity via the air inlets and sequentially flows through each assembly. The diffusion air outflow assembly can rotate to guide the air flow to the air outlets, enable the air flow to diffuse outwards and decrease the flow velocity of the air flow. The air purifier expands the purification range of the air purifier and improves the purification effect of the air purifier.

The application provides an air purifier comprising a shell assembly having air inlets and air outlets, and a filter assembly, an air inflow guide assembly, a fan and a diffusion air outflow assembly sequentially arranged from back to front. The filter assembly can purify air entering the filter assembly via the air inlets and flowing through the filter assembly. The air inflow guide assembly defines a guide channel between the filter assembly and the fan. The fan generates an air flow that flows into a first receiving cavity via the air inlets and sequentially flows through each assembly. The diffusion air outflow assembly can rotate to guide the air flow to the air outlets, enable the air flow to diffuse outwards and decrease the flow velocity of the air flow. The air purifier expands the purification range of the air purifier and improves the purification effect of the air purifier.

The application provides an air purifier comprising a shell assembly having air inlets and air outlets, and a filter assembly, an air inflow guide assembly, a fan and a diffusion air outflow assembly sequentially arranged from back to front. The filter assembly can purify air entering the filter assembly via the air inlets and flowing through the filter assembly. The air inflow guide assembly defines a guide channel between the filter assembly and the fan. The fan generates an air flow that flows into a first receiving cavity via the air inlets and sequentially flows through each assembly. The diffusion air outflow assembly can rotate to guide the air flow to the air outlets, enable the air flow to diffuse outwards and decrease the flow velocity of the air flow. The air purifier expands the purification range of the air purifier and improves the purification effect of the air purifier.

The application provides an air purifier comprising a shell assembly having air inlets and air outlets, and a filter assembly, an air inflow guide assembly, a fan and a diffusion air outflow assembly sequentially arranged from back to front. The filter assembly can purify air entering the filter assembly via the air inlets and flowing through the filter assembly. The air inflow guide assembly defines a guide channel between the filter assembly and the fan. The fan generates an air flow that flows into a first receiving cavity via the air inlets and sequentially flows through each assembly. The diffusion air outflow assembly can rotate to guide the air flow to the air outlets, enable the air flow to diffuse outwards and decrease the flow velocity of the air flow. The air purifier expands the purification range of the air purifier and improves the purification effect of the air purifier.

A system and method for determining a remaining useful life of an ozone converter of an aircraft are disclosed. The method comprises using flight data of the aircraft and location-based ozone exposure data to determining a cumulative ozone exposure for the ozone converter. The cumulative ozone exposure and a predetermined ozone exposure capacity of the ozone converter are used to determine a remaining useful life of the ozone converter. Based on the determined remaining useful life of the ozone converter, an indication that the ozone converter is approaching an end-of-useful-life condition is provided.