Headbands are easy to adjust and comfortable to wear<br> With flexible cover,this half facepiece will be perfect with any face shape<br> The flow valve helps to dissipate heat and moisture, which helps to reduce user fatigue<br> Suitable for many occasions:<br> (1) Sawing Work<br> (2) Epoxy Resin Work<br> (3) Grinding Work<br> (4) Wood working<br> (5) Mold Removal Work<br> (6) Suitable for production in cement factories, cleaning, power plants, stone processing, polishing, interior design, sawdust, wood processing, lead paint, wall art, powder processing, etc.<br> Product Type:reusable<br> When you feel that the breathing resistance is obviously too , the human body feels uncomfortable, or the filter is dirty or damaged, the filter cotton needs to be replaced immediately.<br> Note: the 2091 Filter Cotton cannot be washing.<br> Note: The product cannot produce oxygen, please do not use it when the oxygen concentration is lower than 19.5%<br> Material: silica gel<br> colour: As shown<br> Package Contents:<br> 1 x respirator<br> 2 x filter cotton<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.