Sizes
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The archetype window
30 to 250 mL. That is a car bottle, a handbag size, a standard room spray and a generous one, which is the whole commercial range for a pump fragrance product.
The shelf is wider
30 to 946 mL at the shelf level, because the window unions the archetype with what the spray-bottle families actually hold, rather than only from the window. The very small and the very large are there and are not what this craft uses.
The median is 200
Which sits just above the middle of the archetype window, so the depth is where the craft needs it.
Lead with one size
Every size is a separate bottle, label, case count and listing. A first range is one scent family in one size, and the second size is a decision made after the first one sells.
The second size is usually smaller
A travel or car size at a low price point gets a customer to try a scent they will then buy at full size. That works better in this category than a larger bottle at a discount.
Cost per unit barely moves
A 50 mL and a 150 mL cost nearly the same to fill, label, code and ship. The bottle and the fragrance are the difference, so a small size has a worse margin than it looks unless it is priced deliberately.
And a refill is an option worth considering
A larger plain bottle sold as a refill for a nicer one keeps the glass in use and lowers the per-use price. It also needs its own label, its own disclosure and its own date code.
Match the size to where the product lives
A car bottle goes in a door pocket, a room spray stands on a shelf, a linen spray lives in a cupboard. Those are three different footprints before they are three different volumes.