3-LAYERS OF PROTECTIONNon-woven Outer Layer + Filter Paper Layer + Skin Friendly Not-woven Inner Layer.Breathable And Comfortable,Low Breathing Resistance.COMFORTABLE EAR-LOOPComfortable elastic ear-loop, extra-soft ear loops eliminate pressure to the ears.You Feel Comfortable With Periods Of Time Usage.this DisposedHIDDEN NOSE STRIPSInset With Bendable Metal Nose Strips Freely Adjust Shape According To Face Shape,Increase Facial Fit,Adjustable According To Nose HeightBETTER PROTECTIONPerfect when travelling through congested airports, bus terminals, malls, parks , and busy city streets3-LAYERS OF PROTECTIONNot-woven Outer Layer + Filter Paper Layer + Skin Friendly Not-woven Inner Layer.Breathable And Comfortable,Low Breathing Resistance.COMFORTABLE EAR-LOOPComfortable elastic ear-loop, extra-soft ear loops eliminate pressure to the ears.You Feel Comfortable With Periods Of Time Usage.this DisposedHIDDEN NOSE STRIPSInset With Bendable Metal Nose Strips Freely Adjust Shape According To Face Shape,Increase Facial Fit,Adjustable According To Nose HeightBETTER PROTECTIONPerfect when travelling through congested airports, bus terminals, malls, parks , and busy city streetsNot-woven Outer Layer + Filter Paper Layer + Skin Friendly Not-woven Inner Layer.Breathable And Comfortable,Low Breathing Resistance.COMFORTABLE EAR-LOOPComfortable elastic ear-loop, extra-soft ear loops eliminate pressure to the ears.You Feel Comfortable With Periods Of Time Usage.this DisposedHIDDEN NOSE STRIPSInset With Bendable Metal Nose Strips Freely Adjust Shape According To Face Shape,Increase Facial Fit,Adjustable According To Nose HeightBETTER PROTECTIONPerfect when travelling through congested airports, bus terminals, malls, parks , and busy city streets