For those of you who have built enclosures for your laser: will a simple 20cfm air purifier work as exhaust if it is sealed? I am building one for my Ortur laser master 2 and was thinking of putting a small MOOKA Air Purifier chimney on it. My other option is one of the 4" Vivosun inline fan with a filter. Its big but boasts 190 cfm. Just don’t want to waist extra money and space if I can. The box is going to be 24"x27"x10.4"
If you have air assist at the nozzle you need more to pull the smoke from all over the enclosure so I found that a small extractor didn’t do the job. I ended up with a 6" unit at 311 CFM
This has a full width collector in the laser cabinet (1000mm x 700mm) and exhausts into an MDF that is about the same size as you are thinking about. Inside I mounted 2 x cooker hood carbon filters about 12" apart. You will need to make an air inlet in the laser case that gives enough airflow to feed the fan. I have 3 x 4" dia holes in the side of the enclosure. The exhaust is piped outside though a modified cat flap!. Works very well.
Hope that helps,
Thank you. That helped as lot! I did get an air assist I am going to set up in the enclosure and ended up going with your suggestion