Fiberglass Duct Liners

How's the ventilation system in the places you frequent?

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view looking into a metal air duct that is outside on the ground after being removed from an office. There is dirty fiberglass flaking off of the inside of the duct.

We have all seen it, in the movies the perfect escape plan is to crawl through the big, shiny clean air ducts. But the ductwork often really looks like this. Dirty old deteriorating fiberglass on the inside where air blows past it. A microscopic glass shower for all.

Looking inside of a fiberglass lined air duct at the thick caked on dirt and flakes of glass fibers.

The inside of an air duct that was removed from an office building. It is lined on the inside with fiberglass, which is not only old, but dirty and deteriorating.

View inside of an air duct that is lined on the inside with fiberglass. The duct is outside and there is snow on it. You can see the vent ways in the back where more air ducts where connected to it.

View inside of a fiberglass lined air duct that was removed from an office. The white on the duct is snow as it was placed outside after being removed.

A stack of big square silver metal air ducts outside placed next to piles of wooden boards and wooden skids.

These types of air ducts cannot be cleaned. When buildings are renovated often times while the walls get a fresh coat of paint and the floors are redone, the air ducts are left in place. Schools, movie theaters, restaurants, offices, stores, US post offices, hospitals, doctor's offices, apartment buildings, malls etc... if you see a shiny metal air duct on the outside there is a good chance the inside is lined with fiberglass.

Looking inside of a very dirty fiberglass lined air duct that is placed outside after being removed.

Fiberglass lined air ducts are in use all over the place and still continue to be installed today.

View inside of a fiberglass lined air duct that is very dirty with shredded yellow glass hanging from the top of it.

A fiberglass lined air duct that was removed from an office building. The air in the building was making the employees sick. This is where the term "sick building" comes from.

Side view of a stack of silver metal air ducts that are outside on the ground after being removed from a building.

A stack of air ducts that were removed from an office building.

View of the inside of old ductwork that has fiberglass liners on the inside with caked on dirt.

A view from the inside of air ducts lined on the inside with old dirty fiberglass where the air blows past it.

A hospital room with a bed and two end tables and a white tiled floor with fiberglass lined ductwork above showing tiny pieces of glass blowing down on everything in the room.

Does your local hospital have fiberglass inside their ductwork?

A drawing of a clothing store with fiberglass lined ductwork showing tiny glass particles blowing down on the clothing.

Do the clothing stores you like to shop at have fiberglass lined ductwork?

Sharon Maguire - Updated 1-30-2018

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