breathing mask
- respiratorBreathing protection device
- oxygenElement eight, colorless gas
- filterPorous separation device
- ventilatorMechanical breathing apparatus
- surgicalRelating to operations
N95 · gas · scuba · snorkel · airway · inhale · exhale · lungs · strap · elastic · foggy · medical · protective · face · nose · mouth · suffocate · sterile
- lung testsspirometer, spirometry, lung function test, lung function, vital capacity
respiratory function
breathing maskchoking hazard
Item risking airway blockage
gag · airway obstruction · noose · asphyxiant · strangulation