1. Basic parameters
Capacity range:
Small: 10g-30g (for car use)
Standard: 50g-100g (for home/office use)
Large capacity: 150g-300g (for commercial space)
Material:
Bottle: PP (polypropylene, chemical resistance) or PET (transparent and beautiful), some use glass (high-end models).
Lid: PP or metal electroplated lid, optional vent design (control evaporation speed).
Inner liner/filter: PE or ABS material, fixed gel/solid fragrance.
Size example:
50g: diameter 66mm × height 38mm (oblate)
100g: diameter 66mm × height 50mm (cylindrical)

2. Key design features
Volatization control:
Adjustable vent cover (rotate to adjust the fragrance concentration).
Open wide mouth design (accelerates evaporation) or narrow mouth design (extends the use time).
Sealing:
Silicone sealing ring (anti-evaporation when not in use).
Aluminum foil sealing film (for initial opening protection).
Appearance craftsmanship:
Transparent/frosted bottle body (shows the remaining contents).
Silk screen printing, labeling or embossed LOGO (customized by brand).

3. Special function extension
Additional design:
Hangable (adhesive backing or hook structure).
Replaceable inner core (environmentally friendly design, reusable bottle body).
Anti-dumping base (applicable to vehicle-mounted scenarios).