Venting Dust Collector Outside

Dust collectors located indoors usually have ductwork that vents to the outdoors.

Venting dust collector outside.

The dust collector takes air from in the room and blows it into the bags. If you vent to the outside you will get the best air quality possible. But you will have to plan on how that air gets replaced. Explosion vents are commonly used on baghouses and cartridge dust collectors.

In this case you have an option but not a cheap one. They also provide particulate retention which means that no particles or flaming. You will either suck it in again through the air inlet or have it ninja through an open window or breathe it in when you go outside. Totally isolating the de from the work area and venting outside is about the best thing you can do.

Flameless explosion vents as the nfpa defines them act as flame arrestors completely stopping flames. If you move the bags outside it will pump air from the room to outside. Flameless venting can consist of a flame arrestor element vent panel and flanged housing. The blower is powerful enough that it s going to pull replacement air from somewhere.

This method is designed to combine the techniques of explosion venting and flame arresting. Nfpa 68 allows this as long as the ductwork is strong enough to withstand the potential damage. If it can t pull replacement air you create a backflow restriction on the blower and risk reducing the overall air flow of the unit. The only proviso when venting outside is make sure the vented air is not near any open doors windows etc that are open to replace the air that is being extracted otherwise the dust can be returned into the workshop.