Using an airbrush without being near ventilation?

Thorbrand

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#1
Hi guys

I will one of these days be moving on to airbrushing, but I would like to buy a pro one so I get the best result and experience.

My problem is my work area isn't set up close to a window, and the closest window has a massive wall unit infront of it, so I was wondering is it possible to use an extractor fan with a filter that is replaceable?

Eventually Im going to have my own shed but that's a long way away yet.
 

Jens Andrée

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#2
I just built a box with an extractor fan mounted on the back and put a cartridge filter (a dust filter for wood dust) in front of the outlet to the fan and Bob's your uncle!
Obviously it's best to funnel out the air from the fan through a window to remove any enamel/thinner smells, but you have to start somewhere...

Due to being bedridden for long periods after an accident I even use this contraption whilst spray painting in bed, but this more or less require no wife/girlfriend because they have really odd views on creativity... :D

There are commercial smaller spray booths to buy I guess but I'm more of a DIY kind of guy and I doubt they're much better than mine anyway.
It can even be made out of a cardboard box and thus be replaceable when too messy!
 

stillp

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#3
You might be better off using a charcoal filter from a cooker hood.
 
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#4
Kind of depends upon what you are spraying, the more harmful the solvent, the more specific you need to be about keeping it out of your lungs! Whatever happened to data sheets? So, if your spraying water based acrylics, a home made affair will most likely be fine, if you're using solvent based paints, you'll need to make sure both fumes and particulates are stopped.
 

m1ks

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#5
Due to being bedridden for long periods after an accident I even use this contraption whilst spray painting in bed, but this more or less require no wife/girlfriend because they have really odd views on creativity... :D
Ha, I thought I had some lazy methods when it came to modelling but that's great, I reckon I could fit a spare bed in the room where I model, :smiling3:

A lot does depend on the paint, Enamel thinner and cellulose thinner fumes are unpleasant and not great, My filter has a particulate filter and a charcoal filter behind it and isn't vented to a window, (though it can be), I've sprayed with Enamels a lot and cellulose frequently and there's little to no odour, however after a session with those, I crack open the window and leave the room to air out for half an hour.
 

Jens Andrée

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#6
I actually built my portable spray booth because I was using the airbrush in bed, with Tamiya acrylics thinned with cellulose thinner. I remember going for a pee after a long-ish paint session and when I came back I almost had to grab my wheelchair (that I'm no longer having to use!) because the fumes were really bad - and stinky... I built the spray box/booth afterwards.

Now I've got an extractor, and have replaced the thinner with isopropanol, and it's almost so you don't notice it. A woman would notice it, and complain, of course, but when you've been stuck in bed for more or less 8 years on and off you have to become creative. I also used to solder complex smd circuits in bed. If I hadn't been creative those years ago I wouldn't be here today.

If you can have a different dedicated spray area other than the bed I think it is to prefer, even though it (kinda) works for me... ;)
 

Thorbrand

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#7
Well @Jens Andrée i'm sorry to hear you were bed ridden but glad to hear you no longer need your wheelchair. @John Rixon it might be wise for me to start airbrushing with acrylics since most of my paints are acrylic. I reckon i could knock up a spray booth, i mean it's just some panels and a fan really
 

BarryW

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#8
You can get a spray booth that filters the particulates. I had one until recently and it works well for paints for which particulates are the problem rather than smell. Paints such as Vallejo Model Air and AKI acrylics are good for that and I would recommend these for an enclosed 'family space'. Avoid enamels and solvent based paints as they will stink the place out with no extractor.

This is the unit I used (actually a double one, this can be extended) it workds well with the water based acrylics.
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Jens Andrée

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#9
This is the unit I used (actually a double one, this can be extended) it workds well with the water based acrylics.
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That's more or less exactly what I've built using parts I already had lying around. Mine's about £169.75 cheaper but still ;)
It's a working concept for sure.
 

Awins

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#10
Another very serious issue to consider when building your own is the type of fan.
If you are using flammable paints, laquers, solvents etc there is a serious risk of explosion due to sparks within the fan.

I think you will need a brushless type but obviously research this first.
 

Airfix Modeller Freak

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#11
I build in my garage, and when I do spraying, I just open up the rear and front garages and the wind blows everything out....
Natural air extractor. It's free as well
 

beowulf

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#12
if you are using waterbased acylics like vallejo then you dont need the same sort of extraction

i once built my own spray booth.....big plastic storage tub on its side, a couple of cheap computer fans and a vent hose for a tumble dryer....sat on the window sill in the spare room, every time i wanted to use it the hose went out the window, worked a treat

then we moved to another apartment that was a bit of a strange shape, the spare room was smaller and i just couldnt work out where to put the spray booth, but it had this really weird walk in storage cupboard.....only about 4 foot wide but 12 feet long....really weird,....as we knew we wernt going to staying there for more than 18 months we decided to use it as storage for stuff we knew we woudlnt need til we did move again.....just piled in the cardboard boxes......i ended up putting the spray box at a convienient height at the front and the box immediatly behind was a banana box (got loads for free from Morrisons to move with).....i blocked the holes with card board and fed the tumble dryer hose into it.......i honestly thought i would have all sorts of pressure problems but none what so ever.......18 months later when i dismantled it i was surprised to find a ring of multi coloured paint on the back of the box and some on the base in front of the tube but not as heavy as i thought it would be..........seems acrylic paint dries VERY quickly when in air