They also provide particulate retention which means that no particles or flaming.
Venting dust collector outside.
Flameless venting can consist of a flame arrestor element vent panel and flanged housing.
Nfpa 68 allows this as long as the ductwork is strong enough to withstand the potential damage.
In this case you have an option but not a cheap one.
The blower is powerful enough that it s going to pull replacement air from somewhere.
Sometimes though an indoor dust collector has no vent to the outside.
What s important however is that venting outside directly will put the fine particule matter right next to where you are breathing.
This method is designed to combine the techniques of explosion venting and flame arresting.
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.
Dust collectors located indoors usually have ductwork that vents to the outdoors.
Flameless explosion vents as the nfpa defines them act as flame arrestors completely stopping flames.
If you live somewhere where you enjoy having the room heated or cooled moving the bags outside will defeat your heater or cooler.
Explosion vents are commonly used on baghouses and cartridge dust collectors.
If you move the bags outside it will pump air from the room to outside.
The dust collector takes air from in the room and blows it into the bags.
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.
Totally isolating the de from the work area and venting outside is about the best thing you can do.