3D Printer Air filter

Thought I'd put this up in case others are interested in their health. I know it's said that PLA fumes are pretty much harmless but I cant help thinking it's not a bad idea to try and reduce the intake. Whenever I start a printing run of a few objects I often get a burning at the back of my throat, might as well be on 40 a day. Down to description: I clad the printer in 3mm clear acrylic, making use of the bolt holes in the chassis. The front was made to detach easily. The top was fixed with cle