Breathing Filters TRIZ Cases

Bayonet fastening and hot blade welding replace adhesives, preventing toxic vapor release while shock resistance preserves filtering capacity.

A helically pleated filter integrates a stiffening structure to maintain shape under operational loads.

Flexible nose plug guides air through a serpentine path to block odors while preventing nasal spray overdosing.

Segmented nozzle sections pivot on orthogonal axes to adapt to different face shapes, resolving structural rigidity versus wearer comfort trade-offs.

A pivoting respirator filter body separates its chin seal during exhalation to direct airflow downward.

A head wearable air purifier uses a light guide to direct violet LED radiation toward the filter assembly for surface decontamination.

A gas sensor system compares vapor concentrations from upstream and downstream sample streams within a respirator cartridge to determine end of service life.

Segmenting the internal volume adds a dedicated filtration stage that removes contaminants bypassing the primary seal, thereby increasing the protection factor.

A respiratory face mask cartridge generates electric voltage through a galvanic cell to deactivate microbial agents in breathed air.

A fan-driven air purification face mask structure guides external air through a filter to the user's mouth and nose.

Segmented nasal inserts and exhaust valves provide a secure seal for precise aerosol delivery while preventing gas escape.

Segmented adjustable straps and closed-cell foam seals resolve fit contradictions, ensuring reliable nasal and chin protection against airborne pathogens.

A mask body cover couples to a mask body via a coupling groove and sealing bracket to secure the air duct assembly.

Segmentation and universality principles enable quick cartridge swaps on a single fit-tested mask, eliminating redundant testing time.

A directional valve uses an eccentric fixing lug to lift the membrane off the seat during expiration.