Wednesday, April 10, 2019
Best HEPA Dust extractor using guide
Dust extractors use high volume air traveling at low velocity. These tools are designed to pick up huge amounts of waste that is constantly produced by woodworking power tools.
What is HEPA?
HEPA stands for high-efficiency particulate air. HEPA filters fit into machines like air purifiers and dust extractors to get rid of microscopic air pollutants – tobacco smoke, pet dander, and even sawdust – that can be hazardous to your health and woodworking equipment. In order for a filter to meet HEPA standards, it should be able to filter or capture at least 99.7% of particles 0.3 μm or smaller.
What to look for in a HEPA dust extractor
Before purchasing a HEPA dust extractor for your workshop, you should first pay attention to several features and capabilities of what a certain dust extractor model can do.
The air volume sucked up by a dust extractor is measured by using cubic-feet-per-minute (CFM). Most basic portable dust extractors should produce at least 130 CFM which is enough for most light- and medium-duty power tools. However, large woodworking machines may require something much stronger (wood thicknessers requires at least 500 CFM). In the end, it depends on what you have in the workshop, and in most cases, 140 CFM should be enough for most of what you have in your workshop.
Another indicator of dust extractor performance is the static water lift test. Essentially, manufacturers test their dust extractor models by placing the suction hose into a tray or bucket of water and see how far in the water is sucked through the tube (measured in inches). This test determines how well the dust extractor can pick up larger-sized debris.
The best home-use dust extractors should have a water lift of between 90 and 100 inches, though it depends entirely on what power tools you possess and how much lift it requires to pick up the leftover sawdust and debris.
Static electricity is produced as dry particles rub the inside of the hose. As the static charge builds up, it can discharge a spark which can potentially lead to an explosion. Although these are extremely rare, it’s something that we should avoid at all costs. You can either ground the dust extractor or purchase a model that comes with an anti-static hose.
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