The firebox is a critical component of every fireplace chimney and ensuring that it is up to proper standard is important to making your chimney as safe as it can be. The firebox is a two walled structure inside of your chimney, which contains the direct heat of the fire and guides the products of combustion towards the smoke chamber and the flue.
Our single use N95 Respirator has a 95% filter efficiency level. It is effective against particulate aerosols free of oil; time use restrictions may apply. These lightweight, contour fit respirators are maintenance free, have 2 elastic straps for a comfortable and efficient fit, and allow easy breathing and speaking while in use. Packaged 20 per box (12 boxes per case).