10/21
Contents
Lasercutter room fumes air filtering
name: this is on the internet.
17 aug 2021
Date for Decision
Usually one week after posting - but having a month on this might be better
Cost
- £170 alan suggested this one: some machine
- £90 this is the one peter suggested , but the reviews are poor and he can't find replacement filters.
- plexer is interested in finding out what fumes there are, and this is a £60 thing
What is being asked for
effective air cleaning.
Why/how this will be good to have
So what are the fumes? from acrylic this clever article says MMA, which is non toxic (But an irritant), but you can smell it at 0.05ppm, where 0.17ppm is safe for life-long inhalation, as it breaks down and is not accumulated in the body. That research was commissioned by a acrylic lasercutting company, who installed a 20m chimney and "Induflex has 6 lasers, which are all modified with much stronger suction than delivered by the manufacturer."
some chemist on reddit did back-of-the-envelope maths which suggests an unventilated (normal) lasercutter can go way over 0.17ppm.
acrylamide(wiki) - is the "cancerous" chemical in burned things. It is "likely or expected" to be cancerous, is as strong a wording as I could reasonably find.
Who is for it
peter, and everybody else
Comments
might be cancerous, might not, either way it stinks real bad and is bad news.
"The bottom line is that it is a good idea to take precautions but don't become paranoid."
these pro-grade lasercutter filters.. say:
A fume filter typically uses a combination of a HEPA (High Efficiency Particulate Air) pre-filter and a combined filter which contains activated charcoal. The HEPA filter captures the airborne particles in the extracted air and the charcoal filter removes the aroma.
Here is the datasheet for an £8k filter system.
this page here says: Electrocorp has designed air cleaners for laser engraving and laser cutting environments. They feature a deep bed of activated carbon for the removal of chemicals as well as a powerful HEPA filter to remove particles that are released in the laser cutting process.
Outcome
unrivalled success.
