Kubix heat- and energy-recovery ventilators are designed for condominiums and small homes. Each of the five available models can serve a living space of approximately 1,000 square feet. The units measure 16 inches on each side and feature ultra-quiet blowers, so they can be installed in a closet, the manufacturer says. Prices start at $740. Venmar Ventilation, 800/567-3855, venmar.ca

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