Black Square Diffuser

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Black Square Diffuser

Black Square Diffuser

Regular price $17.25 NZD
Regular price Sale price $17.25 NZD
Sale Sold out
Tax included. Shipping calculated at checkout.

Surprise your passengers and keep your car smelling great with a diffuser that lasts all day. They’re refillable, so pick your favourite scent and take your driving experience from 0 to 100!

They’re so good, you’ll never want to get out of the car!

These fragrance diffusers are designed to hang from your rearview mirror, air vent, or mount on your dashboard. They will transport you to floral gardens, fill your vehicle with the heady scent of designer-inspired fragrances, or, choose a scent that creates a fresh new car smell.

With a variety of personal and office uses, our diffusers are perfect for any setting. They can easily fit into your carry-on luggage, purse or kitchen. You'll never run out of unique scents to help you relax or wake up when you try one of our diffusers.

Enjoy an easy, long-lasting way to fragrance your car with our refills! The refill comes in a convenient 10ml glass bottle with a dropper tamper-proof lid. It's also great for travel, as it's airline-friendly and spill-proof!

If you are changing the scent of your current car diffuser, wash both the bottle and lid in warm soapy water to prevent cross-contamination, then allow them to dry before filling it with your desired new fragrance.

The scent of a flower can brighten even the dullest day.

Reasons to love our car diffusers

Hanging car diffusers allow you to enjoy the benefits of various scents while driving. Depending on the type of scent used, you may experience a range of benefits, such as reduced stress, increased focus, improved mood, and more.

They are easy to use and require minimal effort to set up. Simply fill the glass bottle with your scent choice, attach it to your rearview mirror, and enjoy the scent while you drive.

Compared to other types of car air fresheners, hanging car diffusers tend to provide a longer-lasting fragrance. This is because they are not diluted with other chemicals or additives, and the diffuser can be refilled as needed.

With our hanging car diffusers, you can customise the scent to suit your mood or preferences.

From minimalist designs to colorful and whimsical options, there is likely a hanging car diffuser that will suit your taste.

Overall, hanging car diffusers can be a great way to enhance your driving experience and enjoy the benefits of scent on the go.

Care & use Instructions

Unscrew the cedar wood lid and fill the hanging car diffuser with your scent of choice. Once filled, replace the lid back on, but not too tightly.

Tip the bottle upside down so that the cap becomes soaked, then hang it up in your car).

Avoid manipulating the car freshener while driving.

Seek immediate medical attention if the product's contents are accidentally ingested.

In case of accidental spills, immediately wipe the affected area with a dry cloth and then thoroughly wipe with a cloth moistened with water to prevent damage to your car's interior.


5 - 10ml clear or decorate polymer clay coated glass bottle with cedar wood lid and string,

Comes with a 10ml black glass bottle filled with your scent of choice and dropper lid.

Hanging car diffuser FAQs

A hanging car diffuser is a small glass bottle that is designed to be hung inside a car and used to diffuse fragrance oils into the air.

Our hanging car diffusers are small glass bottles, some covered in a decorative polymer coating and an absorbent cedar wood lid. The bottle is then hung from the car's rearview mirror, and the fragrance is diffused into the air as the car moves.

Using one can help to create a more pleasant and relaxing environment inside your car. Depending on the scent used, a hanging car diffuser can also help to improve your mood, and reduce stress.

The fragrances in a hanging car diffuser can last between 6 week to 6 months depending on a number of factors, including the size of the container, how strong the scent is required, the frequency of refreshing and how frequently the car is used.

Yes, hanging car diffusers can be used in rental cars, but it is important to check with the rental car company first to make sure that they allow the use of such devices in their vehicles. Some rental car companies may have restrictions or rules regarding the use of hanging car diffusers, so it is always best to check beforehand.


At Melt my Heart, we understand that delivery charges can be a hassle. That's why we have designed our shipping policy to be as affordable and transparent as possible. Here's what you can expect when it comes to shipping costs and delivery times:

Flat Rate Shipping:

We offer a maximum flat rate of $7.95 for Nationwide Shipping, with the exception of Rural areas, which are charged at $10.75. This ensures that you know exactly what you'll be paying for shipping, without any surprises.

Free Shipping:

Spend $75 or more, and you'll qualify for free shipping. It's our way of rewarding you for your larger orders and making your shopping experience even more enjoyable.

Dispatch Time:

All orders are typically dispatched within 2-3 business days. However, please note that on rare occasions, due to unforeseen circumstances, it may take up to 5 days for your order to be shipped. Rest assured that if there are any significant delays beyond this timeframe, we will promptly notify you and provide an estimated shipping date.

Busy Periods:

During our busiest times of the year, we kindly ask for your patience as dispatch times may be slightly longer. We strive to fulfill orders as quickly as possible, and your understanding is greatly appreciated.

Tracking Numbers:

Once your order has been booked with the courier, we will send you a tracking number via email. This allows you to conveniently monitor the progress of your package until it reaches your doorstep.

Courier Service:

We entrust the delivery of your orders to NZ Post, a reliable and trusted courier service. They will handle the transportation of your package with care and professionalism.

Delivery Messages:

If you have any specific delivery instructions or messages, we will forward them to the Courier Driver through the delivery notes. Please note that while we will do our best to communicate your requests, we cannot guarantee that the drivers will always be able to accommodate them, as this aspect of the delivery process is beyond our direct control.

Shipping Address Verification:

To ensure smooth and accurate delivery, we kindly request that you carefully double-check your shipping address during the order placement. Orders are printed and dispatched using the details you provide, so accuracy is crucial.

We strive to provide affordable and reliable shipping services to enhance your shopping experience. If you have any further questions or concerns regarding our shipping policy, please feel free to reach out to our customer support team at

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