300 pcs disposable oral covers for adults,3 ply filter unisex adults oral protection skin-friendly outdoor dustproof covers high filtration and ventilation security,blue kunaw description:<br /><br />protect yourself from airborne particles!<br />cover the nose, mouth and chin.<br />unlike the cheap blue surgical being sold, our ones are reusable and offer far greater protection against airborne particles however, we do not recommend using them for more than 48 hours to ensure the best for your safety.<br />suitable for workshop, pollen, sweeping, gardening, farm work, cleaning and protection against other airborne dusts.<br />95% filtration, provide anti-dust protection for you.<br />color: yellow <br />type: ears wearing<br />material: non woven fabric,etc<br />filtering rate: ≥95% (0.075μm particles)<br />applications: daily life, factory workshop,spas,hospitals,clinics,school,working places,etc<br />package included:<br /><br />300 × masks