A fan filter like an exhaust fan filter or box fan filter is an accessory that is designed to be used with fans and blowers. Typically made of a mesh or other porous material, fan filters are placed over fans of electronic devices and enclosures to remove particles from the air.
A basic assembly of a fan filter is usually made up of these four parts,
- Outer cover/ Frame: To hold the filter in place
- Filter pad: Remove particles from the air
- Mesh screen: Provide additional support and prevent filter pad from collapsing
- Finger guard: Protect fingers from accidents involving the fan's moving blades
What Does Fan Filters Do?
A fan filter removes any dust or small particles from the filter fan. This effectively improves air quality and prevents buildup of dust and other contaminants in the fan which can lead to overheating of electronics.
Applications of Cooling Fan Filters
Fans and fan filters are used in every industry where heat is generated and the components around it must be kept cool. Some of the most common are:
- Electronic Enclosures: Data cabinets, electrical control cabinets & outlet boxes, server racks
- Motors and Machines: CNC, electrical motors, welding machines
- Equipments: Projectors, laptops, CPU
- Heating & cooling fan coils in heating or cooling systems
Extractor Fan Filters for Kitchen Stove Exhaust Fan
Fan filters are a staple in the kitchen to protect extractor fans, cooker hoods, kitchen exhaust and air ducts from kitchen grease. To ensure a higher quality of air for extractor fans, activated charcoal or carbon on the fan filters will absorb harmful soot and oil gases into its pores, leaving purified filtered air.
Box Fan Filter DIY to Improve Air Quality
Ventilation is a top concern for global citizens and just opening windows or doors isn't going to be too helpful. Places like laboratories, offices and classrooms are among some of the most common enclosed spaces where clean air and good circulation is vital to prevent the spread of any viruses.
While air purification units such as those with HEPA (High Efficiency Particulate Air) filtration are expensive, inventions like the Corsi-Rosenthal Box solved this issue. With smart manipulation of an axial box fan and fan filters to create DIY filtration units, these box fan filters effectively reduce levels of airborne viral particles in indoor settings, ensuring clean and odour-free air.
Fan filters are available in various shapes, styles, sizes and materials. The selection of a fan filter depends on the size and type of fan and environment it is to be used. Some of the attributes that must be considered are;
- Fan filter frame size
- Filter frame material
- Fan filter type
- Filter material
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