Ventilation and The Indoor Environment Home Ventilating Institute

• Customization: Available
• After-sales Service: 24h Online
• Warranty: 1year
• Model NO.: JMS-DF50D
• ventilation mode: mechanical ventilation
• Certification: EAC, TUV, GOST, ISO9001, ROHS, CE
• Transport Package: Carton
• Trademark: GMUSEM
• Origin: China
• HS Code: 8414593000
• Production Capacity: 5000PCS/Month

Product Description

Product Description

Balanced ventilation systems, if properly designed and installed, neither pressurize nor depressurize your home. Rather, they introduce and exhaust approximately equal quantities of fresh outside air and polluted inside air.
A balanced ventilation system usually has two fans and two duct systems. Fresh air supply and exhaust vents can be installed in every room, but a typical balanced ventilation system is designed to supply fresh air to bedrooms and living rooms where occupants spend the most time. It also exhausts air from rooms where moisture and pollutants are most often generated (kitchen, bathrooms, and perhaps the laundry room).

Supply ventilation systems use a fan to pressurize your home, forcing outside air into the building while air leaks out of the building through holes in the shell, bath, and range fan ducts, and intentional vents (if any exist).
Like exhaust ventilation systems, supply ventilation systems are relatively simple and inexpensive to install. A typical supply ventilation system has a fan and duct system that introduces fresh air into usually one -- but preferably several -- rooms that residents occupy most (e.g., bedrooms, living room). This system may include adjustable window or wall vents in other rooms.

Exhaust ventilation systems work by depressurizing your home. The system exhausts air from the house while make-up air infiltrates through leaks in the building shell and through intentional, passive vents.

One concern with exhaust ventilation systems is that -- along with fresh air -- they may draw in pollutants, including:

• Radon and molds from a crawlspace
• Dust from an attic
• Fumes from an attached garage
• Flue gases from a fireplace or fossil-fuel-fired water heater and furnace.

Company Profile