Frequently Asked Questions

Dip-tube length should be matched to the internal bottle height and base shape so the tube reaches close to the bottom without being forced against the glass. A tube that is too short can leave product inaccessible; a tube that is too long can bend excessively or affect pump assembly.

Confirm the final tube length on an assembled sample and test priming and spray performance with the intended fragrance.

Each lid material behaves differently. Wood, bamboo and cork can show natural grain, tone and moisture-related variation; resin supports decorative molded forms; metal and alloy lids can provide precise shapes and metallic finishes but may require inserts or liners for the intended fit.

Select the material together with the jar opening, lid-seat geometry, weight, decoration and packing. Approve physical jar-and-lid samples because the same nominal diameter can fit differently depending on the insert, gasket and manufacturing tolerance.

Provide the exact container model whenever possible. If a model is not available, measure the finished opening or neck and include the dimensions that control component fit: outside and inside diameter, thread or crimp specification, rim or lid-seat geometry, relevant heights and any insertion depth.

For pumps, also provide the neck finish and required dip-tube length. For lids and stoppers, a technical drawing or physical sample is strongly preferred because nominal diameter alone does not describe threads, tapers, gaskets, inserts or fit tolerances.

Check the glass bottle, sealing component, wooden cap and hanging cord as one system. Confirm usable fill, cap fit and absorption, cord strength and finished hanging length, then test the assembled product for leakage while tilted, moved and exposed to temperatures relevant to vehicle use.

If the wooden cap is wetted by briefly inverting the bottle, define a controlled procedure and verify that fragrance is absorbed without uncontrolled liquid release. Consumer instructions and protective retail packaging should support the same use method approved during testing.

Yes, but the selected coating, printing, label or other decoration should be evaluated with the actual fragrance and filling process. Oil can contact the bottle exterior during filling or consumer use, and some formulas can affect coatings, adhesives or printed surfaces.

Check adhesion, staining, rubbing and long-term appearance on decorated samples. Protective packing should also prevent coated bottles from rubbing against each other during shipment.

Choose diffuser bottle size around the intended fragrance life, room use, retail price, bottle stability and final packaging. Smaller formats suit gifts, trials and compact spaces, while larger bottles provide stronger shelf presence but also change reed quantity, box size, shipping weight and cost. Common projects may use sizes such as 100ml, 150ml or 200ml, but the best choice depends on the actual fill line, opening, cap and reed system.

Many reed diffuser products use a separate sealing plug or transport closure to reduce leakage during filling, packing and shipping. A decorative cap is not automatically the transport seal.

Match the plug or closure to the exact bottle opening and test it with the intended fragrance. Also confirm how the consumer removes the seal and inserts the reeds, and make sure the final retail pack has enough space for the bottle, cap, plug and reeds.

The opening determines how the reeds enter the bottle and contributes to the exposed liquid area, while reed quantity, diameter, material and length affect fragrance transfer and evaporation. A larger opening or more reeds does not automatically mean better performance and can shorten product life.

Test the actual fragrance base and reed set in the selected bottle under realistic room conditions, then balance scent output, evaporation rate and expected use duration before production.

Start with the target fragrance fill, bottle stability, opening size and the intended reed system. The bottle should remain stable when the reeds are installed, and the opening should provide enough clearance for the selected reed quantity and diameter without being unnecessarily large.

Then confirm the transport plug or stopper, decorative cap, fragrance compatibility, evaporation rate, decoration and retail packaging on the filled assembled sample. Diffuser performance depends on the bottle, fragrance, reeds and closure working together.

Aftershave and cologne may use splash reducers, screw caps or spray pumps depending on formula, dosage and market position. Bottle sizes can also be larger than fine-fragrance formats, and the expected dispensing experience may be different.

Confirm the bottle neck, gasket, closure, dip tube or reducer, alcohol/formula compatibility, label area, leakage and transport sealing with the actual filled product.

Attar and perfume oil commonly use small glass bottles with roller balls, dabbers, reducers, stoppers, droppers or screw caps. The correct option depends on formula viscosity, desired dosage, carry use, leakage risk and brand presentation.

Test the actual oil with the selected ball, plug, gasket, liner or other liquid-contact component because concentrated fragrance oils can interact differently with closure materials.

Durability depends on glass preparation, the selected coating or printing system, curing, artwork, surface contact, fragrance exposure and packing. Different decoration methods can perform differently under rubbing, scratching or accidental formula contact.

Approve decorated samples and test adhesion, rubbing and compatibility with the intended filling and cleaning process before repeat production.