A filtration device (FD) having a front plastic sheet (PS), a sponge element (SE), and a filter element (FE) may be secured to a mask (M) with a “stickie” interface (AL, FS; FIGS. 5 and 6), or with a rigid mechanical interface (FIGS. 7 and 8) which may include a rigid support (RS) (FIG. 9). The rigid support (RS) may have a recess for receiving the sponge element (SE) and avoiding it being compressed when the filter element (FE) is disposed between to the outlet side of the rigid support (RS) and the filter element (FE). The sponge element (SE) may be provided with a cutout (CO; FIG. 10) for accommodating the flap of a non-rebreather mask (M). A protective cover (PC; FIG. 11) having perforations (PF) and a second sponge element (SE2) may be provided on the outlet side of the filter element (FE). Methods of use.

Systems and methods for generating nitric oxide are disclosed. A nitric oxide (NO) generation system includes at least one pair of electrodes configured to generate a product gas containing NO from a flow of a reactant gas; and a controller configured to regulate the amount of nitric oxide in the product gas produced by the at least one pair of electrodes by utilizing duty cycle values of plasma pulses selected from a plurality of discrete duty cycles to produce a target rate of NO production based on an average of discrete production rates associated with each of the plurality of discrete duty cycles.

Provided is a filtering facepiece respirator. The respirator includes a mask body having an anterior side portion, a posterior side portion, a middle portion, a first side portion, a second side portion, a top side portion, a bottom side portion and outer edge portions. The respirator further includes a primary port positioned at the anterior middle portion of the mask body and a detachable primary port adapter which is positioned over and engages the primary port. The respirator may further include an oxygen port and oxygen port adapter and a luer port and luer port adapter.

Implementations of a respiratory isolation enclosure for patients comprise a side surface, an upper surface, and one or more access openings and ventilation openings, and in some implementations may further comprise a lower surface. In some implementations, a method of using the respiratory isolation enclosure for patients comprises positioning and enclosing a patient with an infectious disease in the respiratory enclosure to respiratorily isolate the patient and prevent the spread of the disease from the patient to healthcare providers or other persons.

A seal-forming structure for a patient interface may include a patient-contacting surface configured to engage the patient's facial skin to form a seal; a posterior opening formed in the patient-contacting surface, the posterior opening configured to provide the flow of air at said therapeutic pressure to the patient's nares; and a support structure extending from the patient contacting surface to an interior surface of the seal-forming structure, the support structure and the interior surface forming a continuous loop, wherein the patient interface is configured to allow the patient to breath from ambient through their mouth in the absence of a flow of pressurised air through the plenum chamber inlet port, or the patient interface is configured to leave the patient's mouth uncovered.

A high flow therapy system for delivering heated and humidified respiratory gas to an airway of a patient, the system including a respiratory gas flow pathway for delivering the respiratory gas to the airway of the patient by way of a non-sealing respiratory interface; wherein flow rate of the pressurized respiratory gas is controlled by a microprocessor.

Described herein are various embodiments of an oxygen concentrator system and method of delivering oxygen enriched gas to a user. In some embodiments, oxygen concentrator system includes one or more components that improve the efficiency of oxygen enriched gas delivery during operation of the oxygen concentrator system. In some embodiments, time measurements based on the penultimate breath taken by the user are used to alter the oxygen delivery parameters.

A method of assessing airway clearance therapy efficacy includes generating a pressure pulse in a respiratory device being used by a patient. The patient's lung impedance is measured during the pressure pulse and the patient's lung condition is assessed based on the patient's lung impedance. The patient's lung condition is then assessed after airway clearance therapy.

The present invention relates to a respiratory therapy device (1) for the targeted assistance of a secretion removal from the airways of a patient and a method for operating such a respiratory therapy device (1). The respiratory therapy device (1) comprises a flow unit (2) for generating a respiratory airflow for an insufflation and a respiratory airflow for an exsufflation, which comprises a patient interface (3) for connecting the patient and a respiratory air interface and two fans (5, 6) fluidically connected in parallel each having an intake side (15, 16) and a delivery side (25, 26). A first fan (5) is fluidically coupled with its intake side (15) and a second fan (6) is fluidically coupled with its delivery side (26) to a switchable valve unit (7).

Disclosed are methods, apparatus and systems for treating a respiratory disorder in a patient. The apparatus comprises a pressure generator configured to generate a flow of air so as to provide ventilatory support to the patient; a transducer configured to generate a flow signal representing a property of the flow of air; and a controller configured to analyse the flow signal to estimate the inspiratory volume and the expiratory volume of a breath of the patient and servo-control the degree of ventilatory support to adjust an estimated tidal volume toward a target tidal volume. A gain of the servo-control is dependent on a difference between the estimated inspiratory volume and the estimated expiratory volume. The method comprises operating an apparatus or system in a similar manner.