en.Wedoany.com Reported - Soler & Palau has launched the Pureclass decentralized ventilation system, designed to improve indoor air quality in existing buildings, classrooms, offices, and other high-density spaces. The unit integrates a mechanical ventilation system with heat recovery and an aluminum counterflow heat exchanger, capable of recovering up to 92% of heat from exhaust air.
In buildings lacking proper mechanical ventilation, the accumulation of CO₂ and fine particulate matter can affect comfort, concentration, and health, leading to increased absenteeism in educational and workplace settings. Many existing buildings, particularly older ones or those not designed to current indoor air quality standards, require retrofitting solutions to improve ventilation without altering the original structure. Major constraints arise when renovation projects cannot install duct networks, construct suspended ceilings, or modify interior layouts. The lack of shafts and the need to preserve certain building components limit the options for integrating centralized ventilation systems.
Pureclass addresses this situation with a room-by-room deployment solution: it exhausts stale air while introducing pre-filtered outdoor fresh air. Its ductless design allows the unit to be installed in suspended ceilings, false ceilings, or on surfaces, with minimal construction impact, eliminating the need for new technical pathways or significant changes to existing layouts. The system combines efficient heat recovery with fresh air filtration, integrating ISO coarse, ePM10, and ePM1 filters to intercept dust, pollen, and fine particulate matter, aiming to reduce pollutant exposure in sensitive spaces such as educational institutions, libraries, offices, and commercial buildings. Fans equipped with EC motors maintain stable airflow even under pressure variations. Integrated airflow control (CAV or VAV modes) regulates air volume, contributing to more precise energy management in modernization or renovation projects.
Pureclass also features an integrated automatic bypass function that leverages outdoor temperatures when external conditions are favorable. This function enables natural cooling strategies, reducing indoor heat loads in specific situations and decreasing the demand on air conditioning systems. Acoustically, the unit employs a self-supporting double-panel structure and internal soundproofing made of melamine foam, designed to limit noise propagation, making it suitable for environments where acoustic comfort impacts daily activities.
Soler & Palau's technical documentation also introduces NARAH, a decentralized energy recovery ventilation unit designed for individual rooms. Its operation is based on Push-Pull technology, using reversible fans to alternate between supply and exhaust, maintaining constant airflow in both directions without the need for ducts or diffusers. Juan Carlos Romero, Product Manager at Soler & Palau, stated that the company recognizes the importance of air quality in offices, educational institutions, and residential spaces, and that improving these environments is not always easy. Pureclass was born to address the real-world challenge of ventilation in spaces where duct installation or construction work is not feasible. The unit combines a high-efficiency heat exchanger, EC motor, and F7-grade filtration to provide clean, stable fresh air with moderate energy consumption, designed to be installation-friendly, quiet, and specifically tailored for retrofits and comfort-sensitive environments like classrooms and offices.
Pureclass is integrated into the Recomex heat recovery system series, which includes models with built-in cooling coils, aimed at optimizing building energy consumption, reducing the load on air conditioning systems, and enhancing indoor comfort in facility renovation and modernization projects.
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