3M 9504 inv-1  (Free Size, Pack of 1)

Flat fold disposable P2 respirator offering reliable, effective protection against moderate levels of fine dust and mists, over long periods of time. Cool flow exhalation valve reduces moisture and heat, build up, making disposable dust masks ideal for wearing. Adjustable nose clip helps ensure a comfortable and secure fit, during prolonged use so filtration protection is always at an optimum. Material combines low breathing, resistance with effective filtration for consistent high quality performance.