A mask apparatus includes a mask body including a body front surface and a body rear surface configured to cover at least a portion of a user's face, a fan module disposed at the body front surface, a mask body cover that is coupled to the mask body and defines an inner space accommodating the fan module, a seal coupled to the body rear surface and configured to define a breathing space between the mask body and the user's face. The mask body defines an opening that passes through the mask body and that connects the inner space of the mask body cover to the breathing space. A pressure sensor is disposed in the opening and configured to sense air pressure in the breathing space.

A mask apparatus includes a mask body including a body front surface and a body rear surface configured to cover at least a portion of a user's face, a fan module disposed at the body front surface, a mask body cover that is coupled to the mask body and defines an inner space accommodating the fan module, a seal coupled to the body rear surface and configured to define a breathing space between the mask body and the user's face. The mask body defines an opening that passes through the mask body and that connects the inner space of the mask body cover to the breathing space. A pressure sensor is disposed in the opening and configured to sense air pressure in the breathing space.

A contaminate shield for protecting dentists and patients from harmful emissions during dental procedures is disclosed. The contaminate shield can include apertures allowing the dentist to access the patient's mouth through the contaminate shield. Further, the contaminate shield can include an aperture connectable to an air exchange system that provides clean air to the patient or removes contaminated air expelled by the patient. Additionally, the contaminate shield can be secured to the patient's face such that it covers the patient's nose and mouth to provide a physical barrier between the patient and a dentist.

A contaminate shield for protecting dentists and patients from harmful emissions during dental procedures is disclosed. The contaminate shield can include apertures allowing the dentist to access the patient's mouth through the contaminate shield. Further, the contaminate shield can include an aperture connectable to an air exchange system that provides clean air to the patient or removes contaminated air expelled by the patient. Additionally, the contaminate shield can be secured to the patient's face such that it covers the patient's nose and mouth to provide a physical barrier between the patient and a dentist.

A filtered air supply assembly includes a filtration unit that can be worn on a user's clothing. The filtration unit including a plurality of filters each is integrated therein and each of the filters is filter air that is pumped by the filtration unit. A mask is provided that can be worn on the user's face. A mask air hose is fluidly coupled to the mask and the mask air hose receives air from the filtration unit thereby facilitating the user to breathe the filtered air when the mask is worn. A nose air hose can be fluidly coupled to the filtration unit thereby facilitating the user to breathe the filtered air when the nose air hose is positioned in the user's nose.

A filtered air supply assembly includes a filtration unit that can be worn on a user's clothing. The filtration unit including a plurality of filters each is integrated therein and each of the filters is filter air that is pumped by the filtration unit. A mask is provided that can be worn on the user's face. A mask air hose is fluidly coupled to the mask and the mask air hose receives air from the filtration unit thereby facilitating the user to breathe the filtered air when the mask is worn. A nose air hose can be fluidly coupled to the filtration unit thereby facilitating the user to breathe the filtered air when the nose air hose is positioned in the user's nose.

A housing (1) accommodates various electrical, electronic, electromechanical and/or electropneumatic components (13) in a housing interior (2). A blower filter unit (19) is provided with such a housing (1). The housing (1) has at least one housing through-opening (4), arranged between the housing interior (2) and a housing environment (3), for receiving at least one functional unit (6) which, in a state received in the housing through-opening (4) is connectable to at least one of the components (13) arranged in the housing interior (2) for transmitting data, signals and/or power. The functional unit (6) is provided as an adapter module (9), which has a connector (10) that can be non-destructively detachably connected to a contact element (5) arranged in the housing through-opening (4), establishing a connection for transmitting the data, signals and/or power.

A housing (1) accommodates various electrical, electronic, electromechanical and/or electropneumatic components (13) in a housing interior (2). A blower filter unit (19) is provided with such a housing (1). The housing (1) has at least one housing through-opening (4), arranged between the housing interior (2) and a housing environment (3), for receiving at least one functional unit (6) which, in a state received in the housing through-opening (4) is connectable to at least one of the components (13) arranged in the housing interior (2) for transmitting data, signals and/or power. The functional unit (6) is provided as an adapter module (9), which has a connector (10) that can be non-destructively detachably connected to a contact element (5) arranged in the housing through-opening (4), establishing a connection for transmitting the data, signals and/or power.

Provided are a breathing isolation mask and a breathing assistance system, the breathing isolation mask comprising an isolation mask body, a first gas non-return mechanism, a strap set and a first gas channel, the isolation mask body being provided with an inhalation port and an exhalation port, the inhalation port and the exhalation port being independent from one another or being the same port, the strap set at least comprising two straps, the two straps being respectively connected to two sides of the isolation mask body, the first gas channel extending towards two sides of the isolation mask body, the first gas channel being at least partially connected to at least one of the two straps, one end of the first gas channel at least extending to the inhalation port of the isolation mask body, the first gas non-return mechanism being mounted on the exhalation port or the first gas channel, the first gas non-return mechanism being configured to allow gas to unidirectionally exit the isolation mask from the exhalation port or via the first gas channel. The first gas channel is not suspended below the isolation mask, and when connected to the strap set, is not prone to swaying, or interfering with daily activities of a user.

Provided are a breathing isolation mask and a breathing assistance system, the breathing isolation mask comprising an isolation mask body, a first gas non-return mechanism, a strap set and a first gas channel, the isolation mask body being provided with an inhalation port and an exhalation port, the inhalation port and the exhalation port being independent from one another or being the same port, the strap set at least comprising two straps, the two straps being respectively connected to two sides of the isolation mask body, the first gas channel extending towards two sides of the isolation mask body, the first gas channel being at least partially connected to at least one of the two straps, one end of the first gas channel at least extending to the inhalation port of the isolation mask body, the first gas non-return mechanism being mounted on the exhalation port or the first gas channel, the first gas non-return mechanism being configured to allow gas to unidirectionally exit the isolation mask from the exhalation port or via the first gas channel. The first gas channel is not suspended below the isolation mask, and when connected to the strap set, is not prone to swaying, or interfering with daily activities of a user.