Search query: heat recovery ventilator

Product: iPower 4 Inch 150 CFM Inline Fan with Variable Speed Controller Air Carbon Filter 8 Feet Ducting Combo for Grow Tent Ventilation, Silver
Brand: iPower
Color: Silver
Relevance: Exact
4 inch 150 CFM duct inline fan blower: made with quality components for quiet operation. Composite fan blades and center hub which reduces noise and vibration.
4 inch 1050+ IAV Australia charcoal filter: one of the world's most absorbent carbon available; dimensions: 4" flange ducting x 12" length; reversible flange; free pre-filter included.
Fan speed controller: variable speed, OFF, HIGH, MED, LOW. To avoid the risk of burning out the fan motor, controller does NOT adjust below 50%.
4 inch 8 feet uninsulated aluminum ducting + 2 stainless clamps: flame-retardant coating and corrosion-resistant wire helix; temperature endurance range from 0 ~ 185°F. (-18℃ ~ 85℃). Free pair of 4 inch metal clamps made from stainless steel.
Multi-Functional: this ventilation combo removes heat and eliminate the undesirable ill-smelling odors in the grow tent to solves air delivery problems without major system rework or expense. Wide applications: kitchens, greenhouses, grow rooms, etc.

Product: VIVOSUN 6 Inch 440 CFM Inline Duct Ventilation Fan with Variable Speed Controller
Brand: VIVOSUN
Color: Inline Fan
Relevance: Complement
Warnings:
1. Follow the wiring diagram for installation and ensure the device is connected to the ground if required. Use of an extension cord is not recommended. A poor connection may cause damage to the fan.
2. Exercise caution when moving the fan. Do not lift or carry the fan by its blades, as this may cause the device to produce more noise during operation.
3. Do not remove components of the device, as doing so may affect the fan’s safe operation, air-tight seal, balance, or other important properties.
4. Install the fan only as indicated in the user manual. Any other methods of installation may affect its service life.
5. The fan, especially its blades and electrical components, should be kept out of the reach of children. Children must not operate the fan without supervision from an adult.
POWERFUL AIR FLOW: Heavy hitting blower with a fan speed of 2450 RPM for an air flow of 440 CFM. Moves air through your target location efficiently for optimal ventilation.
RUNS SMOOTH AND QUIET: Powerful fan puts out only 50 dB noise level. Fine-tuned for minimum vibration with a sturdy vegan leather cover that further muffles any sound or vibration.
DURABLE BUILD: Galvanized steel parts come factory painted to resist atmospheric corrosion from humidity. Tight, precise construction eliminates rattling and reduces wear and tear to give the element a long life.
HIGH TECH DESIGN: The aerodynamically designed centrifugal impeller of this unit delivers strong air flow with a disproportionately low sound profile. Fitted with a variable speed controller and dual flanges for hassle free hookup
VERSATILE APPLICATIONS: Ideal for cooling lighting fixtures or controlling hot and humid conditions in grow tents/rooms.