Breathing Filters TRIZ Cases

A mask device uses a partition plate and dual air cleaners to filter outside air, preventing mixing of exhaled and filtered air for better breathing comfort.

Band shifting film on the valve flap flashes during movement, providing visual confirmation of proper operation without adding mechanical complexity.

Stiff cup-shaped casing and curved lid compress loose filter material into a uniform bed without external support structures.

Segmented reusable holders and disposable packs resolve cost trade-offs while maintaining consistent heat transfer via localized elasticity.

Segmenting the mask body from a replaceable filter cartridge resolves the trade-off between consistent seal reliability and easy cartridge replacement.

Downwardly facing air passage restricts liquid ingress via gravity while pivotable pre-filter web enables dual shower and filtration functionality.

A head-mounted air purification system uses a moveable mask and support to deliver filtered air while enabling compact stowed storage.

An electronic device integrated into a patient interface uses embedded conductors to exchange data with a ventilator, resolving calibration complexity.

Segmented mouthpiece and nose plug bypass facial hair to maintain reliable filtration seals.

A peripheral absorbing element reduces fogging and discomfort while maintaining low breath resistance.

A respiratory half-mask with a strap guide part and clamping element secures side straps to the mask body.

A transparent mask uses a resin film with through holes to allow air and sound permeability.

Openwork flexible plastic layers support pleated filter media in a respirator, resolving the trade-off between structural rigidity and facial conformity.

Integral stiffening members formed by welding S-shaped pleats reinforce the mask body, preventing collapse under pressure from dirty or moisture-laden air.

A face mask integrates a neck hanger with fans and filters to deliver purified air.

Downward air inlet prevents rain ingress while transparent face plate maintains visibility.

An air-isolator guides air through a reduced-area main filtering layer, preventing particle leakage at bonding zones.

A unitary respirator design integrates chemically bonded silicone sealing elements directly onto a rigid polymeric facepiece body.

Segmented injection molding creates a clamshell housing that simplifies assembly and enables rapid production during emergencies.

Exhaust fan assembly creates airflow across the mask surface to remove contaminants before they adhere, addressing infection risks for vulnerable users.

Relocating drive motors behind the ears reduces acoustic interference while maintaining effective air filtration and user comfort.

Segmented air pathways combine filtered protection with unfiltered nasal breathing, resolving the trade-off between infection control and respiratory comfort.

Rapid cooling of meltblown PMMA and PLA creates a microstructure that retains electrostatic charge at high temperatures.

A stress deformable breathing mask uses a resilient sealing strip to conform to facial contours.

Peripheral tabs with lateral adhesive strips secure a contoured main body, impeding unfiltered exhales and airborne pathogens.

A facepiece baffle deflects airflow using an exposed metal layer to neutralize pathogens.

A strapless respirator mouthpiece uses user teeth for retention, eliminating bulky head straps.

Upper and lower graspable tabs allow glove-friendly donning of a foldable respirator, preventing internal surface contamination during handling.

Internal pleats and a nose wire shape the sealing surface to conform tightly against facial contours.

A self-contained humidification face mask uses a corrugated hygroscopic paper coil to extract moisture from exhaled breath and release it into inhaled air.

Segmented mask body and reusable filter reduce bulk while filtering exhaled particles.

Adhesive fixation on soft masks eliminates strap pressure while maintaining filtration integrity.

UV lamps emitting 240-280 nanometer radiation disinfect enclosed areas, replacing mechanical filtration to eliminate aerosol transmission risks.

A filtering face-piece respirator mask body incorporates a permanently bonded dart to maintain its cup-shaped form during use.

A face mask with a polyester-cotton outer layer and inner filter pocket provides breathable protection for athletic use.

A respirator mask integrates a foldable filter assembly upstream of the inhalation valve to expand surface area during use.

A life-saving towel integrates a chemical oxygen generating receptor to supply breathable air during emergencies.

An ePTFE membrane in a layered mask structure resolves the trade-off between filtration efficiency and breathability while maintaining antivirus protection.

Segmented frame with protective grille deflects fluid spray to prevent filter contamination, allowing quick cartridge swaps for fast decontamination.

An air/water separator and bubble diffuser segment large bubbles into a fine mist, eliminating low-frequency noise that startles wildlife.

A clear oval filter adheres via a thin flexible ring to the nostril periphery for effective air purification.

Vacuum pressure pulls the wet part surface away from the forming screen to expand fibers, reducing density while maintaining structural integrity.

An electret module air purifier uses a charged element and adhesive layer to capture airborne particles.

A nasal mask seals the nose tip and upper lip using a flexible part with an internal spring structure.

Clamping blocks hold the door open for exhaled substance collection, then release to let a driving mechanism close the chamber and prevent cross-contamination.

A nasal mask uses a hinged bottom portion to align a scented air filter directly with user nostrils.

Thermal bonding joins plastic mesh to melt-blown outer cover web, preventing inward filter collapse during inhalation.

Segmented filter openings isolate exhalation paths, resolving airflow resistance and fogging issues in protective masks.

An elastomeric gasket with a deformable ridge eliminates nose clips, resolving air leakage and eyewear fogging across diverse facial contours.

Segmented PVDF nanofiber modules minimize cake formation and maintain low pressure drop while achieving high filtration efficiency.