Diffuser flower

Diffuser flowers are primarily made from Sola wood (tapioca plant root), cotton rope, or porcelain. Sola wood is the most popular due to its superior capillary action, allowing it to absorb and disperse fragrance efficiently. When selecting, ensure the petals are hand-cut with uniform thickness to prevent curling and ensure a consistent scent throw.

The absorption rate is critical. For high-viscosity oils, you need a flower with a thicker cotton wick or a more porous Sola structure. Always request a wicking test report to ensure the flower can pull the oil to the tips of the petals within 24 to 48 hours without clogging the fibers.

Since these are often paired with liquids, ensure the flowers meet REACH (EU) or TSCA (US) standards for chemical safety, especially regarding dyes and adhesives. If the flowers are made of natural wood, verify if a Phytosanitary Certificate is required by your local customs to prove the item is pest-free.

Suppliers on Made-in-China.com typically offer custom petal shapes, gradient dyeing, and branded packaging. For B2B buyers, it is economically feasible to request Pantone color matching for orders exceeding 3,000 units. Ensure the dyes used are oil-resistant to prevent color bleeding into the diffuser liquid.

The biggest risk is physical deformation or breakage due to the fragile nature of dried Sola wood. You must mandate reinforced inner boxes and 5-layer corrugated export cartons. Additionally, ensure the moisture content is kept below 12% and include silica gel desiccant packs to prevent mold growth during long-term sea freight.

Focus on the weight-to-volume ratio of the Sola wood. Lower-quality flowers use 'pith' that is too airy and breaks easily. Negotiate a Pre-Shipment Inspection (PSI) clause where a random sample must meet a specified weight and petal count. Use Made-in-China.com's Secured Trading services to hold payment until the inspection report is approved.

Due to the high volume-to-weight ratio, air freight can be prohibitively expensive. LCL (Less than Container Load) sea freight is the most cost-effective for bulk orders. If you are also purchasing the glass bottles and oils, consider consolidating the shipment at the supplier's warehouse to reduce 'dead space' in the container and lower your landed cost per unit.

Check the HS Code (typically 6702.90 for artificial flowers or 4421.99 for wood articles) to determine the specific tariff rate in your country. Be aware of Anti-Dumping duties that may apply to certain handicraft categories. Always ask the supplier to provide a Certificate of Origin (CO) to benefit from any existing Free Trade Agreements (FTA).