
How to Choose the Ideal Extraction System for Medium-Sized Spaces?
Spring arrives and, with it, the critical challenge for any grower: rising outdoor temperatures and the management of residual humidity. In medium-sized grow spaces, simply "moving air" is not enough; constant static pressure and thermal management that does not drive up electricity bills are required. The most common mistake is oversizing with inefficient equipment or undersizing with extractors that lose airflow when a filter is connected. The technical solution for those seeking professional results in residential or commercial environments is the Clivex EPP Extractor Box. Designed to provide the perfect balance between airflow, thermal insulation and durability.
EPP Engineering: More Than Just a Soundproof Box
Unlike traditional wooden boxes, which are heavy and prone to accumulating moisture, the Clivex range uses Expanded Polypropylene (EPP). This material is not only extremely lightweight, making installation on ceilings or mobile structures easier, but also provides superior thermal and acoustic insulation.
Why is 1500m³/h the "sweet spot" for professionals?
For a medium-sized space, this airflow allows complete air renewal every minute, even when accounting for the pressure loss caused by filters.
- Chemical Resistance: EPP is immune to corrosion caused by fertilisers or high humidity.
- Complete Airtightness: Its design minimises air leaks, ensuring that all airflow passes through the filtration system.
- Versatility: Ideal for grow rooms requiring discretion without sacrificing industrial-grade performance.
Comparison: Clivex Efficiency vs. Traditional Systems
In today's market, competitors typically offer noisy metal boxes or wooden units that deteriorate over time. Clivex is committed to materials technology. While others lose performance due to mechanical vibrations, our EPP box absorbs the motor's kinetic energy, resulting in quieter and more stable operation.
For retailers, recommending the EPP box means selling margin protection. It is a product that does not generate returns due to structural failures and positions the business as an expert in advanced HVAC solutions.

Practical Application: Spring Installation
April is the ideal time to prepare the system for May's peak temperatures. To optimise your EPP Extractor Box 1500m³/h:
- Clivex Connection: Pair it with our 152mm double-layer Aluduct to minimise friction losses.
- Airflow Calculation: Remember the technical formula: Volume\ (m3) \times 60\ air\ changes = Required\ Airflow.
- Filtration: This box is the ideal partner for the Clivex Carbon Filter 200 x 400mm 830-850m³/h, ensuring that not a single odour molecule escapes outside.
Quick Extraction Tips for Medium-Sized Spaces
- Seal the joints: Use professional aluminium tape on duct connections; air leaks reduce the room's negative pressure.
- Strategic height: Install the box at the highest point in the space to extract warm air, which naturally rises.
- Air intake control: Ensure that the air intake is at least 25% lower than the extraction rate to maintain safe negative pressure.
- Preventive maintenance: Inspect the inside of the box every 6 months; dust on the motor is the main enemy of energy efficiency.
- Duct routing: Every bend in the installation reduces performance. Plan the straightest possible route from the box to the external outlet.



