LARGE FLANGE EDGE TO COVER AND FIT YOUR FACE.
NOSE PAD MADE FROM SPONGE FOR MAKE NOSE FITTING MORE COMFORTABLE AND BETTER FITTING, LESS LEAKAGE ON NOSE.
TRAP PARTICLE WITH ELECTRICITY METHOD THAT HIGH EFFICIENCY FILTRATION.
CARBON FILTER LAYER FOR PROTECT ODORS, GAS AND VAPORS UNDER LIMIT.
LARGE VALVE CAN HELP TO VENTILATE THE HOT AIR AND FEEL COMFORTABLE TO BREATHING.