Car Diffusers
Stock up on everything you need to create or refill high-quality car diffusers with our wide range of supplies. Whether you’re crafting your own line or refreshing your personal diffuser, we offer essential components like vent clips, refill pads, fragrance oils and mini diffuser bottles.
Shop by Product
Ideal for makers, small businesses, or DIY enthusiasts, our car diffuser supplies ensure long-lasting scent performance and a premium customer experience. Explore our collection and get the tools you need to bring fresh, on-the-go fragrance to life.
Each product is carefully selected to ensure both high performance and attractive presentation — helping you create car diffusers that are not only functional but also beautifully designed. Whether you’re developing your own fragrance brand or making bespoke gifts, our supplies give you the flexibility to craft unique and effective products.
With options available in bulk for trade customers, as well as smaller packs for independent makers, we cater to all scales of production. Explore our complete range and find the perfect components to design your own custom car diffusers — bringing freshness, calm, or energy to every journey.
Frequently Asked Questions
Most popular ratios are
- 15–25% fragrance oil
- 75–85% diffuser base
However, the exact ratio depends on the IFRA guideline for that specific fragrance and the desired scent strength. Always check the IFRA
Typical lifespan for a car diffuser is 4–6 weeks, depending on fragrance strength, temperature, and airflow in the vehicle.
Hot weather increases evaporation, shortening lifespan
- Fill bottles to around 70–80% capacity to prevent overflow.
- Ensure the inner plug is firmly installed before screwing on the wooden lid.
- Wipe bottles to remove oil residue that may affect the adhesion of CLP labels.
- Store filled diffusers upright until sale/shipment.
- How does the diffuser release the scent?
- The user tips the bottle briefly so the oil soaks into the wooden/cork cap.
The scent then diffuses slowly through the wood fibres.
Yes. For all fragrance-containing products sold in the UK/EU:
- CLP labels are legally required.
- They must include hazard symbols, allergen listings, supplier contact details, and batch/lot numbers.
Best-performing fragrances tend to be:
- Fresh, clean scents
- Fruity and citrus notes
- Car-inspired fragrances (e.g., New Car, Black Ice-type)
- Strong perfume-inspired scents
Avoid fragrances not approved for diffuser categories (check IFRA).
Common causes:
- Bottle overfilled
- Inner plug not inserted correctly
- Cap overtightened or cross-threaded
- Excess heat causing expansion
- Leaking during tipping for activation
- Can car diffuser oils stain surfaces?
- Fragrance oils can damage dashboards, plastics, or fabrics.
Include a customer warning such as: - “Avoid contact between fragrance liquid and surfaces. Wipe spills immediately.”
For selling car diffusers, you need:
- CLP labels
- IFRA certificate & allergen info
- Safety Data Sheet
- Correct packaging & warnings
For the UK/EU, full CPSR cosmetic testing is not required because diffusers are not cosmetic products.