Rhino Hobby Pre-Filter

The pre-filter allows growers to get the most out of the Rhino Hobby Filter’s 9 to 12-month lifespan.

The pre-filter is made from polyester wool which captures airborne particles while allowing air to flow through it to the carbon filter. The pre-filter slides over the top of the filter.

The pre-filter is machine washable, but it is recommended that it is replaced every 3-6 months for continuous high-quality air filtration. Alongside washing the pre-filter, the Hobby Filter should be turned every 8-12 weeks to even out the wear of the carbon.