The Air-Filtering Ventilator (Duct Unit)
ItemOur items are guaranteed for their normal life under standard, non-commercial use.
Product Story
These unique devices are the only ones that provide thermally-efficient ventilation for a home while simultaneously filtering incoming air to increase freshness. Their patented Air-to-Air Heat Exchanger technology helps create a more comfortable indoor environment while augmenting air quality. Eliminating the need for ozone generators or ionizers, which artificially reproduce the negative ion content of fresh air, these units circulate natural, fresh air into a home from outside. At the same time, they shunt stale internal air and control indoor humidity. Normally, an open window accomplishes the same task, but at a loss of heat that results in uncomfortable drafts during colder months. These devices transfer at least 90% of the thermal energy from the outgoing air to the incoming fresh air, helping prevent significant temperature fluctuations indoors. The filtration unit in the heat exchanger traps 85% of incoming particles as small as 5 microns (a human hair averages between 70 and 100 microns in width). The random matrix polyester-heat exchanger may be easily removed for washing. Both models use a new ultra-quiet, high-efficiency variable-speed motor. All components are heavy steel with corrosion protection from impact-resistant plastics, and exteriors are painted in scratch-resistant electro-plated paint. Both units are ETL rated to UL standards. Duct Unit. Installed directly in the central, forced-air system of a home, this unit effectively filters and exchanges the air throughout an entire house up to 3,000 square feet, and it also helps reduce radon levels. Includes four starting collars for six-inch or galvanized duct connection. Requires professional installation. 23" H x 22" W x 16 1/2" D. (66 lbs.)
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Our merchandise is guaranteed for life.
Items that we sell are guaranteed for their normal life under standard non-commercial use. Should any product fail to meet your expectations, we will replace it or refund the cost of the item less shipping and service fees. Returns older than one year will be credited in the form of a gift certificate.
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Learn MoreThe Story Behind a Retail Legend
In the beginning there was hardware. Over the decades much has changed at Hammacher Schlemmer. But our original philosophy has remained constant...and still guides us more than 175 years later.
Read Our StoryThe affiliated, independent Hammacher Schlemmer Institute was created in 1983 to rigorously research, test and rate products to make the Best products available to our customers.
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