Ever-Lid Sustainable Taiwan Hinoki Diffuser Essential Oil Set

Between each breath, a craft and a forest that keep going

WKidea has always believed good design should coexist with nature. Our "Ever-Lid Sustainable" series was born from respect for Taiwan's mountains and forests. We turn precious Taiwan hinoki into a bottle cap, giving it the task of guarding your essential oil, while a distinctive concave curve on top lets it take on a second life as a diffuser vessel.

Two woods in harmony, an aesthetic experiment in craft and sustainability

Warm Taiwan hinoki serves as the tactile core, paired with a solid, elegant mahogany base, presenting a calm, Japanese-inspired minimalism. The hinoki cap is sanded progressively with 240, 400, and 600 grit sandpaper, with no sealing finish applied, fully preserving the wood's natural pores — once oil drops into the concave curve, it soaks directly into the wood fibers, slowly releasing natural phytoncides that fill your space with the scent of the mountains.

One lid, forever sustainable, living alongside the forest

Every hinoki cap comes from sustainably managed wood from Taiwan's mountains and forests. A 10ml pharmaceutical-grade frosted amber glass bottle protects the oil's potency, paired with reusable wood accessories to practice a zero-waste lifestyle. Once the oil runs out, the wood accessory stays with you — simply refill an empty bottle with your favorite oil again and again. This is what true circular design looks like.

Four purchase options, flexible to your needs

All wood accessories are reusable, putting sustainability into practice.

How to use

① As oil storage: Pour your oil into the bottle, screw on the hinoki cap, and set it on the mahogany base. Both storage and a piece of desk scenery.

② As a diffuser vessel: Drop 2–3 drops of oil onto the concave curve of the hinoki cap; the bare wood pores absorb it directly, slowly releasing scent to fill your space with natural phytoncides.

③ Best for: a study, bedroom, desk, meditation space, yoga studio, or any personal space.

Specifications