3M的N95口罩即防禽流感又防PM2.5,甚至比PM2.5更小的灰塵。美國的化工廠工人,粉塵操作者,就帶N95口罩, Home Depot 就賣它,賣給油漆工,粉刷工。
3M的N95口罩即防禽流感又防PM2.5,甚至比PM2.5更小的灰塵。美國的化工廠工人,粉塵操作者,就帶N95口罩, Home Depot 就賣它,賣給油漆工,粉刷工。
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