>Is there anyway to respirate using a pipe placed elsewhere? Thinking about having a respirator attached to 20meter long pipe and put other end of the pipe outside to get fresh air instead of breathing the welding fumes.
Yes, sort of. Supplied air respirators are masks or helmets fed with compressed air and are widely used in paint spray booths. You'll need a compressor capable of supplying a sufficient quantity of filtered, oil-free air.
A less cumbersome option is a powered air-purifying respirator (PAPR), which uses a belt pack containing a battery, fan and filter unit to supply purified air to a mask or helmet. PAPRs are the most widely used respiratory protection option in commercial welding, with several manufacturers offering PAPRs with an integrated welding helmet.
Both these options have the advantage of being positive-pressure, which means that no fit testing is required to ensure safe use - even if the mask or helmet leaks, the constant supply of clean air at above ambient pressure will prevent the ingress of contaminated air.
An example of PAPR application: I know of a professional woodturner who uses one, a 3M system IIRC. Beyond potential issues with long-term exposure to wood dust, turners tend to use material with unusual provenance compared to commercial timber. That in turn often means "spalted" – i.e. it's got fungal growth in it. It produces some lovely patterning and coloration in the wood, but which you definitely do not want to be breathing. The PAPR effectively combines breathing protection with a common turner's face shield; it's a compelling combination for that kind of work.
Yes, sort of. Supplied air respirators are masks or helmets fed with compressed air and are widely used in paint spray booths. You'll need a compressor capable of supplying a sufficient quantity of filtered, oil-free air.
A less cumbersome option is a powered air-purifying respirator (PAPR), which uses a belt pack containing a battery, fan and filter unit to supply purified air to a mask or helmet. PAPRs are the most widely used respiratory protection option in commercial welding, with several manufacturers offering PAPRs with an integrated welding helmet.
Both these options have the advantage of being positive-pressure, which means that no fit testing is required to ensure safe use - even if the mask or helmet leaks, the constant supply of clean air at above ambient pressure will prevent the ingress of contaminated air.