Disclosed herein is a diffusing apparatus for diffusing essential oils into the air. The apparatus includes a reservoir configured to hold essential oils in an internal cavity, and a controller assembly removably coupled to the reservoir, the controller assembly including an air inlet port, a first controller, and a piezo micro air pump unit. The apparatus further includes a base removably coupled to the controller assembly, the base including a second controller, wherein the second controller is connected to the first controller. The apparatus further includes a tube in fluid connection at a first end with the micro air pump unit and extending into the reservoir, the tube providing a path for pressurized air from the micro air pump unit into the reservoir through a plurality of orifices at a second end of the tube.

An essential oils diffuser with a micro air pump providing between 500 and 1500 Pa of pressure with a consumption of between 0.2 and 1 Watts may be used to push air into essential oils or an essential oil solution to diffuse and expel the oils into the air, while keeping the oils away from the air pump, preventing the oils from shortening the life of the diffuser. The diffuser may include a power supply and a controller to regulate the operation of the diffuser.

A mixer-sparger assembly includes a first body portion; a second body portion; a gasket positioned between the first and second body portions to form a seal between the two body portions; an inlet disposed in the first body portion; a flexible tube connected to the inlet; a fluid chamber disposed in the first body portion or the second body portion and in fluidic communication with the inlet; an outlet disposed in the first body portion or the second body portion and in fluidic communication with the fluid chamber; and a plurality of supports extending downwardly from the second body portion to form a self-standing assembly with a space disposed below the second body portion. The first and second body portions have a density greater than about 1.0 g/cm.sup.3, and the inlet, fluid chamber, and outlet in spatial combination are configured to have an axis of rotational symmetry.

A hydrogen water generator with warning function includes a container, a gas input port, a handle, a diffusing pipe, a gas output port, and a water port. The gas input port receives gas comprising hydrogen. The diffusing pipe is configured in the containing space and coupled to the gas input port. The gas output port receives the gas comprising hydrogen in the containing space and outputs it to the outside. The water port outputs the water to the outside. The gas comprising hydrogen enters into the water in the containing space to generate hydrogen water and humidified gas comprising hydrogen to be outputted to the outside of the container through the water port and the gas output port respectively. The container emits a first color light when the system is under a normal condition, but emits a second color light when the system is under an abnormal condition.

Disclosed herein is a portable air purifier. The portable air purifier includes: a body; first to third accommodation portions configured to have respective open top surfaces in order to separately accommodate a battery, an air compressor, and water; first to third covers configured to selectively open and close the respective open top surfaces of the first to third accommodation portions; an air inlet connected to the lower portion of the second accommodation portion, and configured to accommodate a pre-filter; a siphon pipe positioned upright inside the water of the third accommodation portion, and configured such that the top thereof is connected to the air outlet of the air compressor; a cannula installed on the top of the third accommodation portion, and configured to supply purified, humidified air to a user; and a power switch configured to control the amount of air to be supplied.

A container system includes a collapsible bag having an interior surface at least partially bounding a chamber, the chamber being adapted to hold a fluid. A sparger is disposed within the chamber of the bag, the sparger bounding a compartment and having an inside edge that encircles an opening passing through the sparger. At least a portion of the sparger is gas permeable. A tubular member is coupled to the sparger and is in communication with the compartment. A shaft passes into the chamber of the bag and through the opening of the sparger. A mixing element is secured to the shaft and is disposed within the chamber of the bag.

A diffuser assembly includes a flexible diffuser membrane and a diffuser body. The flexible diffuser membrane defines a circumferential bead. The diffuser body defines a circular plate underlying the flexible diffuser membrane, and an edge ring covering a covered portion of the circumferential bead. The edge ring defines an inside surface that conforms to an outside shape of the covered portion of the circumferential bead. The edge ring is integral to the diffuser body. Such a diffuser assembly may provide a disposable diffuser assembly option with many advantages over conventional technologies such as improved ease of installation, lower weight, and lower cost.

A water aeration diffuser has a base with an internal cavity defining an air pocket, and a ceramic plate removably attached to the base. The base is in flow communication with air supply such that air is received in the cavity and then diffused by the ceramic plate to create an aeration column in a body of water. To allow for repair and servicing, the ceramic plate is removably attached to the base by one or more fasteners. The base includes a perimeter lip around its top portion that supports the ceramic plate and maximizes the exposed surface area of the plate. A water and air-tight gasket is provided between the lip and the ceramic plate. An eye-bolt may be provided through the ceramic plate and attached to the base to provide an attachment point for a ballast or other means used to position the diffuser.

A container system includes a bag comprised of one or more sheets of flexible polymeric material, the bag having an interior surface at least partially bounding a chamber, the chamber being adapted to hold a fluid. A flexible sparging sheet is secured to the interior surface of the bag so that a compartment is formed between the interior surface of the bag and the sparging sheet, at least a portion of the sparging sheet allowing gas to pass therethrough. A tubular port or tube is secured to the bag so that a passage bounded by the tubular port or tube communicates with the compartment. A mixing element is disposed within the chamber of the bag, the mixing element being spaced apart from the flexible sparging sheet.

A bag assembly for use with a heat exchanger includes a flexible bag having of one or more sheets of polymeric material, the bag having a first end that bounds a first compartment and an opposing second end that bounds a second compartment, a support structure being disposed between the first compartment and the second compartment so that the first compartment is separated and isolated from the second compartment. A first inlet port, a first outlet port, and a first drain port are coupled with the flexible bag so as to communicate with the first compartment. A second inlet port, a second outlet port, and a second drain port are coupled with the flexible bag so as to communicate with the second compartment.