Phresh Professional Carbon Filters

Professional Odour Control Built on RC-48 Australian Carbon

Phresh Professional Carbon Filters scrub extracted air clean of dust, particulates, organic compounds and odours, using premium RC-48 Australian activated carbon. Built to professional grade for serious hobby and commercial grow rooms, they deliver total air-stream filtration with far less weight than typical steel-bodied filters.

Key Benefits

• RC-48 Australian carbon with a guaranteed 1050 mg/g iodine number, roughly double a typical coal carbon's absorption
• Lightweight aluminium tops and bases, around half the weight of competing filters and easier to hang
• Sealed and labelled at manufacture, bagged and boxed straight off the line to protect carbon life
• Long service life, built to last around twice as long as many other brands
• Trusted in demanding settings — research labs, plant breeding, tissue culture and commercial greenhouses

How long should a carbon filter really last?

There is no fixed lifespan for RC-48 carbon — it depends on how much airborne impurity the bed absorbs, plus airflow rate and climate. As a guide a Phresh filter lasts a typical user around two years. Its guaranteed 1050 mg/g iodine number (a direct measure of absorption capacity) sits well above the ~500 mg/g of average coal-based carbon, which is why these filters keep scrubbing odour long after cheaper carbon has saturated.

How to Use

• Fit the filter inline before your extraction fan so air is drawn through the carbon bed before exhausting.
• Match your fan's airflow to the filter's rated capacity for the best odour control and longest carbon life.
• Support the filter properly rather than letting it hang from ducting alone.
• Fit a pre-filter sleeve and keep it clean to extend carbon life.