VEVOR Solder Fume Extractor, 150W 165CFM Soldering Smoke Extractor with 3-Stage Filters, 3 Speed Adjustable Smoke Absorber and Purifier for Soldering, Engraving, DIY Welding, Salon

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1. 1.4m. 2. No, it couldn't.

Yes, but only to deal with the floating dust

The filter is 240 * 240 * 270.

I usually make my own or modify existing. I found that you can acquire similar filters that work from Graingers Supplies.