How It Works

SET IT.
FORGET IT.
SUN BAKE IT.

No power. No refills. No chemicals. The 21Captains Air Refiner uses natural coconut-shell activated charcoal to absorb moisture and neutralise odour. Three steps, two years of life, one hour of sun a month.

The Three Steps

PLACE IT. LET IT WORK. SUN BAKE IT.

Step 01
PLACE IT

Hang or place anywhere moisture and odour are a problem. No power, no installation. It just works.

Caravans · Boats · 4WDs · Homes · Pets
Step 02
LET IT WORK

Millions of microscopic pores in the natural coconut-shell charcoal draw in moisture and trap odours. Silently and continuously.

Approximately 15-20m² for the OG, up to 8m² per Slim
Step 03
SUN BAKE IT

Once a month, one hour in direct sunlight. The UV purges what the charcoal has been holding. Place it back. That's it.

No refills. No consumables. Up to 2 years.
How activated charcoal works
The Science, Simply

ADSORPTION,
NOT ABSORPTION.

Activated charcoal works through a process called adsorption, not absorption. The surface of each charcoal granule is covered in millions of microscopic pores that create an enormous internal surface area. As air moves around the bag, moisture molecules and odour-causing particles are drawn into those pores and held there.

It is completely passive. No fan, no filter, no electricity. The natural circulation of air in any enclosed space does all the work.

Ready

PICK YOUR SETUP.
WE'LL DO THE REST.

The OG covers approximately 15-20m². The Slim covers up to 8m² each, splittable across two locations. Most setups call for an OG plus a Slim Duo. Build yours.

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Ready to breathe the difference

BUILT FOR
YOUR SPACE.