>>10852633Should have shown a picture I suppose but this base here for a different model is just the acrylic mud apart from the green area with some airbrushing of different dirt colors on it (left is cured and fresh but overexposed, right is after
>>10852639Either your room is already filthy so you don't notice it or you have very high tolerance for it. Even 1/72 scale plane models leave enough dried paint pigment in the air to cause this, but be my guest, breathe all the garbage you want rather than spend a few bucks building a simple extractor like
https://i.pinimg.com/originals/c6/bb/2e/c6bb2eaeccd8f96a8b969f614c2f453e.jpg