Question 1

Which is cheaper, M249 | Humidor or M249 | Contrast Spray?

Accepted Answer

Catalog floor: M249 | Humidor $1.98 vs M249 | Contrast Spray $0.27. Pattern, float and stickers can invert that on inspect markets.

Question 2

Are these the same collection for a trade-up?

Accepted Answer

No — M249 | Humidor is The 2021 Mirage Collection, M249 | Contrast Spray is The Overpass Collection. Trade-up output weights follow input collections.

Weapon	M249	M249
Rarity	Mil-Spec	Consumer Grade
Collection	The 2021 Mirage Collection	The Overpass Collection
Listed price	$1.98	$0.27
Float range	0 – 0.5	0.06 – 0.8
Missing wears	None	None
StatTrak	No	No
Souvenir	Yes	Yes

M249 | Humidor vs M249 | Contrast Spray