Safety
Welding fume was classified as a Group 1 carcinogen by the IARC in 2017 — mild steel included, not only stainless. The exposure is cumulative and invisible, which is why extraction is the purchase everyone postpones. The good news is that placement matters more than power.
Welding fume was classified as a Group 1 carcinogen by the IARC in 2017 — mild steel included, not only stainless. The exposure is cumulative and invisible, which is why extraction is the purchase everyone postpones. The good news is that placement matters more than power.
The favorable case: the arm is set once, stays within reach, and capture follows the work without you thinking about it.
The arm no longer follows. This is where general ventilation and personal respiratory protection take over.
Zinc fume causes metal fume fever — reversible but brutal. Grinding the coating off first solves the problem at source better than any filter.
Abrasive dust clogs a fume filter far faster than welding does. Separate the two stations, or separate the filters.
| Situation | What works | What is not enough |
|---|---|---|
| Fixed bench, ordinary steel | An arm set close to the arc | An open window behind you |
| Galvanized or stainless | Source capture and grinding back first | General ventilation on its own |
| Large part, moving around | A powered respirator | A fixed arm you never move |
| Closed room with no opening | Extraction to outside | Recirculation not filtered to fines |
A capture system degrades quietly: airflow drops long before anything stops. No universal interval can be stated — it depends on the process, the metal and the hours of arc time.
Welding fume is classified a Group 1 carcinogen by the International Agency for Research on Cancer. Exposure is cumulative and gives no immediate sign, which makes it easy to put off dealing with.
160 A · gasless only · 3-in-1 · €200
A gasless-only machine, on purpose: no bottle, no regulator, no shielding to be blown away — for people who weld outdoors.
Best for: Gates, trailers, fence posts and anything welded where you cannot close a door
200 A · synergic · gas and gasless · €330
The synergic 200 A inverter that most German workshops end up with, and the cheapest machine here with a genuinely adjustable inductance.
Best for: A first serious MIG that will still be adequate after two years of use
140 A DC · lift start · no HF · €128
The cheapest way into TIG, and the one machine here that starts without high frequency — which is a feature, not only a saving.
Best for: Finding out whether you like TIG before spending €400 on one
Position, and it is free: weld with the plume moving away from you rather than past your face, with a door or window open, and never lean over the work into the rising fume. After that, a bench extractor of around 180 m (591 ft)³/h at roughly €100 will capture most of the plume — provided the nozzle stays within a hand’s width of the arc.
No. A standard helmet protects your eyes and face from radiation and spatter, and does nothing about what you breathe. Powered air-purifying helmets do filter the air you breathe, and they are a different and more expensive product — with their own consumable filters and spark arrestors.
It beats nothing, but it dilutes instead of capturing, and the plume passes your face on its way out. Organized cross-ventilation — an air inlet, an extraction opposite — genuinely changes things.
A dust mask is not designed for welding fume, which is very fine and hot. Suitable respiratory protection, or better still capture at source, are the real answers. The disposable mask mostly provides a feeling of safety.
Stainless welding fume contains chromium compounds, some of them classified as carcinogenic. Capture at source is therefore even more warranted than on ordinary steel, and general ventilation alone rarely suffices.
Watch the plume: if it heads for the hood instead of rising freely, capture is doing its job. A thread of smoke rising past your face says the hood is too far away or the airflow has dropped.
Only if the filtration is rated for the finest particles, the ones that matter. Otherwise you are returning to the room what you believe you removed. Discharging outdoors avoids the argument.
Yes, but separately: abrasive dust blinds a fume filter in no time. Two stations, or at least two sets of filters, stop grinding from costing you your welding capture.
For work that: Gates, trailers, fence posts and anything welded where you cannot close a door
Where it is best: No gas bottle to rent, fill, store or carry — the running cost is wire alone
Where it is worst: Gasless only: you cannot fit a bottle later and weld clean MIG with it
For work that: A first serious MIG that will still be adequate after two years of use
Where it is best: Synergic control: you set the material and thickness, the machine sets the wire speed
Where it is worst: The duty cycle is not stated with its temperature in the listing, so 200 A is a ceiling, not a working figure
For work that: Finding out whether you like TIG before spending €400 on one
Where it is best: Lift start emits no high-frequency interference — nothing in the house gets upset
Where it is worst: DC only: no aluminum, ever, whatever the listing photographs suggest
Tips, nozzles, wire and gas from the same aisle, at the price we read. Confirm they suit the machine you choose before ordering: it turns on the torch and the part number, which the product page gives.
Welder against welder, where the comparison is already written up.
The welders here are taken from the catalog of this site. Specifications come from the maker and from the Amazon product page; prices are what Keepa reported for the date shown, and both move. The order rests on declared specifications, on stated strengths against stated limits, and on price. No machine here has struck an arc in our hands, and nothing on this page pretends it has.
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Prices quoted in these summaries are dated readings. The live price is shown next to each product.
Welders and plasma cutters swing by a hundred dollars or more across the year, and the biggest "discounts" often land at prices the same model sold for six weeks earlier. UniverTrack tracks the real price history across retailers, spots fake reductions, and alerts you when it is genuinely the moment to buy.
