Introduction of air filtration materials and selection of antibacterial agents
Air filtration materials are the core components of air purification equipment, used to remove dust, bacteria, viruses, odors and other harmful substances in the air to improve air quality. Common air filtration materials mainly include the following:
Non-woven fabric (polyester fiber)
Features: Non-woven fabric is one of the most widely used air filtration materials, with stable quality, large dust capacity, strong moisture resistance, long service life, economic and durable advantages.
Application: Suitable for primary and middle effect plate, bag filter, widely used in household air purifier, commercial air conditioning system, etc.
Synthetic fibre
Features: Emerging filter material, with low resistance, light weight, large capacity, environmental protection (can be incinerated), moderate price and other advantages.
Application: It can completely replace non-woven fabrics and glass fibers, and cover a full range of coarse, medium and efficient filtration products, which is the main development direction of filter materials in the future.
Glass fibre
Features: High temperature resistance, high efficiency, long service life, suitable for special environment filtration requirements.
Application: Widely used in general ventilation system bag filter and high efficiency filter, the air filtration requirements of high places and environments.
Activated carbon filter
Features: Can effectively remove the odor in the air, adsorption of all kinds of organic gases, but the filtration efficiency is not high.
Application: Usually used with independent coarse and medium effect filters to improve the air purification effect.
Other materials
HEPA filter element: The combination of bacterial particle filter and activated carbon layer, excellent filtering effect, can filter out small particles, bacteria, viruses and other harmful substances in the air.
Filter paper cartridge: Relatively cheap and easy to replace, but slightly less effective at filtering small particles and bacteria.
Resin impregnated paper filter element: high filtration efficiency, up to 99.5%, and compact structure, unlimited installation, no oil consumption, low cost.
Cotton fiber filter element: such as KN high-flow air filter, high filtration performance, can provide sufficient air intake, effectively resist dust, and can be cleaned and reused.
Adding antibacterial agents to air filtration materials can further improve its filtration efficiency and safety, and prevent bacteria, viruses and other microorganisms from breeding on the filter. There are several key factors to consider when choosing the right antimicrobial agent:
Antibacterial activity and broad-spectrum antibacterial activity
Antibacterial agents must have a strong antibacterial ability to fight against a variety of bacteria, viruses and other microorganisms.
Broad-spectrum antimicrobial properties mean that antimicrobials are able to cover multiple types of microorganisms, providing more comprehensive protection.
Effectiveness and durability
Antimicrobials need to be durable, able to maintain antibacterial effects over a long period of time.
Durability is also important, the antibacterial agent should be able to withstand the daily use and maintenance of the filter, not easy to fall off or fail.
security
Antimicrobials must be harmless to human health and not release toxic substances during use.
At the same time, antibacterial agents should be environmentally friendly and will not cause environmental pollution.
Compatibility with substrate
The antibacterial agent should be easy to add to the air filter material and will not change the performance and appearance of the material.
There should be a good bonding force between the antibacterial agent and the substrate to prevent it from falling off during use.
Weather fastness
Antibacterial agents should be able to withstand heat, humidity, light and other harsh environments, to maintain a stable antibacterial effect.
This is especially important for air filtration materials that need to be used outdoors or in high temperature environments.
Regulations and standards
When selecting antimicrobial agents, ensure that they comply with relevant regulations and standards.
Especially in the medical, food handling and other fields, there are more stringent regulations on the selection and use of antimicrobials.
