Disclosed are connector systems for power and/or data transfer in breathing apparatus. The connector systems may comprise magnetically attractive elements and magnets. The connector systems may comprise protrusions and complimentary recesses which are aligned perpendicularly to a cable axis of the connector or connectors. Also disclosed are breathing apparatus comprising the connector systems, and breathing apparatus charging systems.

Disclosed are connector systems for power and/or data transfer in breathing apparatus. The connector systems may comprise magnetically attractive elements and magnets. The connector systems may comprise protrusions and complimentary recesses which are aligned perpendicularly to a cable axis of the connector or connectors. Also disclosed are breathing apparatus comprising the connector systems, and breathing apparatus charging systems.

Disclosed are breathing apparatus comprising lighting systems. Lighting modules are provided to illuminate in vertical and horizontal directions and to illuminate in a first lighting pattern if the determined status condition is a normal status condition and in a second lighting pattern if the determined status condition is an alert status condition.

Portable containment device having a chamber which further includes a first end, a second end, and a vertical wall, wherein a filter is arranged at the second end to entrap airborne particles emitted into an opening formed at the first end of the portable containment device.

Portable containment device having a chamber which further includes a first end, a second end, and a vertical wall, wherein a filter is arranged at the second end to entrap airborne particles emitted into an opening formed at the first end of the portable containment device.

An air purification apparatus for nasal application is provided for purifying and/or reducing undesirable materials from air intended to enter a nasal cavity. The air purification apparatus for nasal application may include an air purification apparatus, housing component, power component, fan component, filtration component, germicidal irradiation component, aroma component, olfactory substance delivery component, nose plug component, monitoring component, and case. The case may reversibly enclose the apparatus and provide electrical power delivery.

An air purification apparatus for nasal application is provided for purifying and/or reducing undesirable materials from air intended to enter a nasal cavity. The air purification apparatus for nasal application may include an air purification apparatus, housing component, power component, fan component, filtration component, germicidal irradiation component, aroma component, olfactory substance delivery component, nose plug component, monitoring component, and case. The case may reversibly enclose the apparatus and provide electrical power delivery.

A packaged filtration mask can include a filtration mask packaged in a container in a vacuum or a partial vacuum. The container can be a tearable container, at least a portion of which can include a laminate of a first part and a second part. A resistance to tearing of the second part can be different than a resistance to tearing of the first part.

A cover device for a regulator, which has a purge button and a mouthpiece connected to the regulator, includes a body having a mouthpiece housing to receive the mouthpiece through an access opening which presents a friction fit to squeeze the mouthpiece passing therethrough in a squeezed state to enter and exit a hollow interior of the mouthpiece housing. The hollow interior is configured to store the mouthpiece in a relaxed state. A button cover is connected to the mouthpiece housing to cover the purge button on a top surface of the regulator when the mouthpiece is inserted into the hollow interior of the mouthpiece housing. The button cover is narrower in width than the mouthpiece housing.

A cover device for a regulator, which has a purge button and a mouthpiece connected to the regulator, includes a body having a mouthpiece housing to receive the mouthpiece through an access opening which presents a friction fit to squeeze the mouthpiece passing therethrough in a squeezed state to enter and exit a hollow interior of the mouthpiece housing. The hollow interior is configured to store the mouthpiece in a relaxed state. A button cover is connected to the mouthpiece housing to cover the purge button on a top surface of the regulator when the mouthpiece is inserted into the hollow interior of the mouthpiece housing. The button cover is narrower in width than the mouthpiece housing.