Armed with a knowledge of the dangers of weld fumes, you know it's important to capture toxic particulate at the source before it has a chance to enter the respiratory zone. The trouble is, you or the welders you oversee are constantly on the move, and they cannot be tied to a single, stationary unit. Or, the necessary budget to implement a whole-plant system is prohibitive. Maybe a cumbersome system seems like overkill.
Awareness of the Dangers of Welding Gases and Fumes is Vital
Welding processes produce gases and fumes, all of which are extremely hazardous. While we can see some fumes (most of which look like unthreatening smoke), we can’t see poisonous gases. Either way, when welders on the job breathe in gases and fumes, they put themselves at risk.
Effective Welding Fume Exhaust Systems
Professional welding workshops utilize welding fume exhaust systems that remove fumes and harmful smoke during all jobs related to welding, including grinding and cutting. There are various types, and the challenge is to choose the best system for each workshop, since different types are designed for specific applications.
Effective filtration systems include the:
PlasmaFil/Weld Fil filter unit that features automatic dust removal. Suitable for systems that utilize oxy-fuel and plasma cutting, for automatic, manual, and robotic welding, and any areas where there are large amounts of smoke and dust.
PlasmaFil Compact/WeldFil Compact that takes up only a small amount of floor space and offers very flexible installation options. Suitable for oxy-fuel and plasma cutting systems and robotic, automatic and manual welding operations, it is good for areas where there are medium to high amounts of dust and smoke. This unit can also be used outdoors.
CleanAirTower that is ideal in workshops where local extraction is inadequate or doesn’t work at all. An energy-saving form of indoor ventilation, it is particularly useful in an environment that has changing sources of dust and smoke, and may be used to supplement local cutting and welding fume exhaust ventilation.
How Welding Process Impacts Fume Extraction Filters
Process matters a lot when it comes to filter life, as well. One particular study showed there was a fume formation rate of globular GMAW that was 2.7 times greater than that of spray, which was in turn 1.4 times greater than pulsed.
Buying the Right Filter for Fume Extraction
Anytime you see a filter efficiency rating that does not reference a specific particle size, or a more recognized rating such as a MERV or HEPA rating, then it needs to be questioned. There are lots of filters rated at 99.9% efficiency, and that's all the information they give!Make sure when you're comparing filter efficiencies that they're all compared on the same level. If they're using a standard MERV rating, then you can do an apples to apples comparison. If it lists a filter efficiency with no specification behind it, question it. If you have any problem in choosing dental lab fume extractor, you can feel free to contact us at dentalsalemall.com.