Volatile Vaporizer new item

[SmooshieBanana]

Volatile Vaporizer is expensive. As an alchemist, you gain numerous spells that target the party as a whole, but in drinking, you can only benefit, not them. This would seek to remedy that. I would like an item that can work like the pill but it is the flask itself. Perhaps with a use/day effect? I think this is how it would look. Feel free to correct me if I'm wrong:

Mechanical:

Who knows how they got to that number of 2200gp-3800gp for the original pill item. Here is my breakdown:

Charges Per Day: Divide by 5
Use Activated: Spell Level 1st-3rd x CL9 x 2000gp
No Space Limitation: Cost x2
Maths: 1st--2x2000x9x1/5, 2nd--2x2000x9x2/5, 3rd--2x2000x9x3/5

Total Retail Price: 1st--7200gp, 2nd--14000gp, 3rd--21,600gp
Crafted Cost is Half

Item:

Vaporizer Flask
Aura moderate transmutation; CL 9th; Weight —; Slot none; Price 7200 gp(1st), 14,000 gp (2nd), 21,600 (3rd)
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DESCRIPTION
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Once per day, whenever a potion is placed into the Vaporizer Flask, that potion turns into a cloud of mist that can be shared by multiple creatures. The potion bubbles and froths itself into a pungent 10-foot-radius cloud. Any creature within the cloud when it appears gains the full effect of the potion. The cloud has no effect on creatures that cannot breathe. A creature may automatically resist the effects of the potion cloud by momentarily holding its breath. Using the Vaporizer Flask destroys the potion's liquid placed inside of it. Each type of Vaporizer Flask can only be used on potions of a particular spell level; using it on a potion of a different spell level has no effect (even on the potion placed inside of it). The vaporizer also works on alchemist infusions, but not mutagens, extracts, or magical oils.
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CONSTRUCTION REQUIREMENTS
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Feats Craft Wondrous Item, alchemical allocation; Cost 3,600 gp (1st), 7,000 gp (2nd), 10,800 gp (3rd)

I will admit, I'm not an expert, or even someone good at making items. I'd love feedback and insight how to make this work, as well as to find an accurate cost.