
Built for bedrooms, living areas, caravans and storage. Drop it in place and let it look after the environment around you.
Breathe the difference. For every space worth protecting, from the van to the boat, the 4WD to the home.
★★★★★
Built for bedrooms, living areas, caravans and storage. Drop it in place and let it look after the environment around you.

Engineered for fridges, drawers, canopies, rooftop tents and boat storage. Split them apart and let them work independently.
From the van to the boat, the 4WD to the home. Wherever moisture and odour build up, 21Captains holds the standard.





Hang or place anywhere moisture and odour are a problem. No power, no installation. It just works.
Millions of microscopic pores in the natural coconut-shell charcoal draw in moisture and trap odours. Silently.
Once a month, one hour in direct sunlight. The UV purges what the charcoal has been holding. Place it back. That's it.
"PACKED THE VAN DOWN 12 MONTHS AGO. OPENED IT LAST WEEK. NOT A TRACE OF MOULD. NOT A HINT OF DAMP."
"This is my second purchase. Travelling in our van full time and they're great. The whole setup just stays fresh. Highly recommend."
"Put the slim in the fridge fruit drawer, the veg have never been happier. Large went into a musty room. Smelling sweeeeet. A must purchase."
"Bought for the new van. Tested in the laundry where the cat sleeps. My wife will not give them back. Already ordering more."

21Captains started the way most good things do. Two people with a problem, a determination to solve it properly, and no interest in cutting corners. What began at home, building Air Refiners by hand and taking them to local markets, grew through word of mouth into something we are genuinely proud of.
It was never just one person. It has always been a team effort. From the very first Air Refiner to every one that leaves our warehouse today, the standard has been set collectively and held collectively. We now have a dedicated crew in our West Ipswich warehouse. People who show up every day because they believe in the product and the standard we hold ourselves to. That belief shows in every Air Refiner that goes out the door.
We are not a drop-shipper. We are not a reseller. We are a small Australian team making a product that works, standing behind it completely, and building something our customers keep coming back for. For people who hold their space to a higher standard, from people who hold their work to exactly the same standard.
Our Full StoryClick any tile to play video
Full-time on the road in a Unimog. Remote Australia. Real conditions. They've used 21Captains for over a year, long before becoming ambassadors.
Not content. Not campaigns. Real people, real setups, real results.
Meet The Crew