A recirculating warm air system configured to connect to an air inflatable product is provided. The system includes a first chamber and a second chamber. The first chamber includes a first air inlet and a first valve located at the first air inlet. The second chamber includes a second valve located between the first chamber and the second chamber, an air outlet, and a first hose connected to the air outlet. The second chamber further includes an air blower and a heater located between the air blower and the air outlet. The second chamber includes a second air inlet, a third valve located at the second air inlet, and a second hose connected to the second air inlet. The first hose and the second hose are configured to connect to the air inflatable product. The system further includes a processing unit configured to control elements of the system.

Methods, systems, and devices are disclosed for implementing switchable dispensing and/or delivery of scented substances. In one aspect, a device includes a cartridge structured to include one or more chambers containing one or more scented substances contained in a corresponding chamber, a housing structured to include a compartment to hold the cartridge, an opening to allow the scented substances to dispense to an outer environment from the device, and one or more transporting channels formed between the compartment and the opening, in which each of the one or more transporting channels is configured to accelerate a scented substance from the corresponding chamber to the opening, and an actuator switch arranged in a corresponding transporting channel and operable to move between an open position and a closed position based on an applied signal to selectively allow passage of the scented substance from the corresponding transporting path.

An apparatus for countercurrent exchange, including: a conduit, including: a side wall; an inner space; an air outlet disposed on a first end of the conduit; a liquid miniaturization device disposed in the inner space of the conduit near the air outlet, wherein the liquid miniaturization device is used to spray a liquid in a liquid direction; an air intake disposed on the side wall near a second end of the conduit; and a reservoir portion disposed in the inner space near the second end of the conduit for storing the liquid; a pneumatic conveyor connected with the air intake for introducing air into the conduit along an air flow direction; and a pumping device connected with the reservoir portion by a first tube, wherein the liquid direction is opposite to the air flow direction in the conduit.

An UV-C device may include several UV-C light sources (e.g., UV-C LEDs) and such UV-C LEDs may have UV-C reflecting structures arranged to direct UV-C in a particular direction and at a particular size and shape. Doing so may, for example, increase the UV-C in a particular direction or working area. A UV-C generating device may be utilized in an air stream, such as an air duct, to sterilize air from that air stream. Multiple UV-C inactivation devices may be coupled in series and placed into a single housing for in order to increase the efficacy of the UV-C inactivation device. The inlet of the device may draw air using an inlet module attachment (e.g., a hood with one or more than one inlet hood) and may output air using an outlet module attachment (e.g., a duct to deliver air to an outflow air duct). Computational fluid dynamic software may be provided where UV-C inactivation devices may be positioned (e.g., manually or autonomously by an adaptive algorithm) to determine impact on airflow against various pathogens (e.g., Staphylococcus and/or SARS-CoV-2).

A fragrance diffuser has a diffuser element connecting a first reservoir to a second reservoir. As a fragrant oil flows between the reservoirs, the diffuser element becomes saturated with oil and diffuses the fragrance or scent. The diffuser is self-contained, easy to interact with, without creating a mess. The diffuser is relaxing and pleasant to watch as it flows through from one end and drips to the other, releasing one small bubble at a time. It is refillable, transportable, and the intensity of the scent release can be controlled easily by saturating the wood more or less often.

Afforded is a spraying apparatus that enables the large-volume generation of fine particles having particle diameters minute to a level that can give rise to Brownian motion. A spraying apparatus of the present invention is furnished with: an atomization tank 11 enabled for storing a liquid formulation; an atomizing device 12 being ultrasonic vibration elements arranged in the atomization tank interior, for atomizing the liquid formulation to generate fine particles; a blower 13 furnished with a blower element enabled for maintaining predetermined rpm, for blasting into the atomization tank interior, through a blow port 11b provided in the atomization tank, conveyance air that is for conveying the fine particles of the liquid formulation; a send-out port 11c, provided in the atomization tank, through which the fine particles are sent out together with the conveyance air; and a baffle plate 14a arranged in the atomization tank interior; wherein with one end part of the baffle plate 14a being spaced apart at a predetermined spacing from the inner surface of the atomization tank, the other end part is connected to the inner side of the atomization tank, and meanwhile, the baffle plate 14a is arranged so as to receive, at a surface on one side thereof, conveyance air through the blow port, and to receive, at a surface on the other side thereof, liquid columns of the liquid formulation, generated by the ultrasonic vibration elements.

A fragrance diffuser vase is provided that has variable fan speeds and that separates the plant or flowers from the diffuser while allowing for the unenclosed display of the plant or flowers. Methods of using the fragrance diffuser vase to disperse a scent are also provided.

Embodiments of a controlled odor emission system and device include an odor presentation port tube and an odor tray securely retained against a platform, a valve housing securable to the platform adjacent the tray, a valve secured within the valve housing and an actuator for moving the valve. By controlling movement of the valve, precise amounts of an odor can be dispensed under programmatic control for training animals. Further, a system incorporating a central control unit and a reward dispenser in communication with an odor emission device to facilitate animal training.

Protective breathing apparatus incorporates a powered air pump which introduces potentially contaminated air from the atmosphere to the ‘process chamber’. The process chamber are composed of a filter and disinfectant solution such as soap, alcohol by adding the solution mixed with the contaminated air passes through the filter to catch a virus in the inlet air to separate the processed air and solution. Furthermore the processed air can be heated and/or be exposed to UV light, the air is then forced to pass through a disinfectant into a centrifuge. The centrifuge then spins the disinfected air forcing the air through a filter, the air then passes a mechanical filter resulting in purified air that flows through conduit means into a transparent plastic breathing hood containing the wearer's head. The hood is secured by a neck band around the wearer's neck. Newly purified air in the breathing hood is distributed and circulated throughout the hood's interior, the current of air holds the hood out of contact with the wearer's head. After the purified air has been inhaled and exhaled by the wearer, it is expelled through an exhaust port in the breathing hood. The exhaled air has potential to be contaminated. The exhaust air travels through conduit means back to the process chamber, this redirected exhaust air is purified before its release back into the atmosphere so no contaminates are expelled into the atmosphere. Optional provision is made for adjusting the temperature of the newly purified air for optimal user comfort, and for a plurality of breathing hoods to be supplied by a single air purifying device.

The above device can be stationary without the breathing hood. Similar to a dust cleaner, but it can kill the virus.

An exhaled air capture and air cleaning system comprising an exhaled air collector and an air purification chamber providing the ability to capture, transport, and clean exhaled air.