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Welding Fumes Exposure Monitoring & Testing

You should make sure that all controls measures are maintained:

  • in an efficient state
  • in efficient working order
  • in good repair and in clean condition

Most welding fumes are easy to see, so you can assess control by observing how well the LEV captures the fume. For TIG welding, where there is little visible fume, you may need to use a dust lamp.

You can video the process to do a qualitative fume assessment where arc welding processes produce UV radiation you cannot look at without suitable eye protection.

Local exhaust ventilation (LEV)

LEV performance can be tested for comparison to the capture velocity range 0.5m/s to 1m/s as described in the HSE guidance Controlling airborne contaminants at work (PDFas appropriate for welding fume, soldering and liquid transfer. Higher-capture velocities may be required when there are draughts interfering with the flow of air into the hood.

Capture velocity measurement is not appropriate for testing on-torch extraction though. In this case total volumetric flow may be checked for comparison to the manufacturer’s recommendations in the user manual.

You should judge LEV performance on the effective capture of any welding fume, not just on the airflow measurements.

You must thoroughly examine and test LEV (PDFat least every 14 months.

Respiratory protective equipment (RPE)

You must thoroughly inspect RPE before each use and for reusable RPE keep a record of your regular examinations, maintenance, repairs and, where appropriate, testing. The HSE publication Respiratory protective equipment at work (PDFgives more guidance on this.

C-Air filtration can assist you with comprehensive monitoring Services. Call today to discuss your requirements.


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Terry Metcalfe
Terry Metcalfe
11:19 12 Jun 24
Excellent service and very competitively priced - Carole is great and is always extremely helpful. Highly recommend.
Avance Sacabollos
Avance Sacabollos
11:22 14 Dec 23
Second time purchasing from Carole and her team, will continue to use, super helpful and friendly and fast shipping. Thanks so much !Jayne.
Freddie Barclay
Freddie Barclay
12:26 23 Oct 23
Carole and the team did a great job of getting us back up and running with some specially made Extractor Socks. Than you again for such a quick and efficient service!
Richie Ryan
Richie Ryan
11:44 18 Sep 23
Thanks Carole for all your help. A great service and great quality products. Your expertise is second to none
Dan Hassell
Dan Hassell
07:56 15 Sep 23
Excellent company to deal with! Knowledge of all extraction unit filters is unmatched. Highly recommend using all the services they have to offer.
dave hartley
dave hartley
11:20 14 Sep 23
excellent service and super fast delivery
Shane Birks
Shane Birks
10:47 14 Sep 23
After struggling to source the filters for some time (with other companies) I tried C-Air Filtration. Their prompt service delivered me a quote for the filters very quickly, and gave me in-depth bespoke advice on filter change procedures for the specific filter in question such as dealing with the safe-change bags etc.After processing the quote the filters came, well within the lead time. They were the correct specification and size.Brilliant service, I would highly recommend.
Ricky Clark
Ricky Clark
10:13 14 Sep 23
Very good company to purchase our goods from. Quick responses and replies to any emails sent if updates on our order(s) are required. Turnaround time from order to delivery is very good (within just a couple of days from PO being sent) - fast service. Goods are well packed and securely strapped or wrapped to pallets upon arrival.
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