if this is used in kitchen, does it have a filter for greasy smoke? there would be same problem in other type smoke
A. The Broan 507 is not equipped with a filtration system. It will only pull the air (and cooking smoke) out of the room where it is installed.
will this unit fit inside a 2x4 wall
A. The Broan 507 will fit between 2x4 studs, take a look at the installation sheet and it shows a complete installation diagram.
Do you have this product with a metal cover?
A. The Broan 507 unfortunately isn't available with a metal cover.
Housing Adjusts To Fit Walls From 4-1/2" To 9-1/2" Thick... does this include intermal sheetrock and external sheeting and siding?
A. it will fit any wall with in that thickness so if the wall is with in those dimensions including the sheeting and siding
Does the 507 have any type of backdraft capability or will dirt and insects just have a good time when it's off?
A. The Broan 507 has a built in damper door that opens and closes when turned on and off.
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