Ultrasonic Mist for a Fully Fragrant Car Interior! Release of the Spray-Type Aroma Diffuser "GWP Diffuser"

Dia Chemical Co., Ltd. (Representative Director: Kenshi Watanabe) launched the spray-type aroma diffuser "GWP Diffuser" in March 2026. This product is an automotive aroma diffuser that vaporizes and sprays liquid using ultrasound.

### Features #### GWP Diffuser Features

- The power turns on automatically with the engine start, and ultrasonic mist is sprayed, spreading fragrance throughout the car. - Four levels of spray intensity can be adjusted, and it automatically switches to standby mode after 1 hour of continuous use.

#### Easy Operation

- It operates easily with simple button controls.

#### No Maintenance Required

- Since the entire core is replaced, troublesome cleaning is not required when changing fragrances.

#### Quiet Type

- Because fragrance is sprayed with ultrasound, the operating sound is quiet.

#### Fragrance Lasts for Up to 20 Months!

Spray Level Table If used for 1 hour a day at Level 1, it can be used for approximately 20 months. The strength of the fragrance can be adjusted in four stages. It does not spray when the engine is not running, so it can be used efficiently only while you are in the car.

### Four Types of Fragrances

- White Musk - White Flannel - Summertime Ginger - Twilight Savon

For the initial purchase, it is essential to buy the spray-type CAP and a dedicated refill set. From the second purchase onwards, you can buy refills and replace them for use. *Always use dedicated refills.

### Product Information #### Product Name: GWP Diffuser (CAP only) - Price: Open (Reference price / around ¥2280) - Release Date: Mid-March 2026 - Sales Channels: Car accessory stores, official online store, etc. - Volume: -

#### Product Name: GWP Diffuser (Dedicated Refill) - Fragrances: White Musk / White Flannel / Summertime Ginger / Twilight Savon - Price: Open (Reference price / around ¥1380) - Release Date: Mid-March 2026 - Sales Channels: Car accessory stores, official online store, etc. - Volume: 160ml

### About Dia Chemical Co., Ltd.

Dia Chemical Co., Ltd., founded in 1962, is a long-established manufacturer specializing in products centered on automotive air fresheners. We offer a variety of products, including the long-selling "Grace Mate Poppy," popular with the catchphrase "Kuruma ni Poppy" (Poppy for your car). Leveraging our accumulated technology, we deliver products that make car interiors more comfortable and pleasant.

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