Biological Disaster Prevention Air Filtration Material for Air Conditioning Systems.(Brief Article)

The Japan Biological Disaster Prevention Association in cooperation with K.B. L Co. Ltd. has developed an air filtration paper called Return Air Filter for air conditioning systems that uses an optical catalyst coating material. The Association is an established national body, concerned with the development of protective measures against a wide variety of forms of potential biological disasters, accidental or intentional, which are increasingly being taken seriously in Japan.

All types of air conditioning systems are fitted with filters on the air suction side to collect and remove foreign substances.

However, conventional types of filters are built inside the the air conditioning system and tend to be small and not capable of filtering all the intake air.

In addition, since they are adhered closely to these systems, some environmental contamination substances in the air are passed through gaps and adhere on the ducts and other internal parts of these air conditioners,

Bacteria proliferate with the adhered foreign substances as their source of nutrition, then are freed from the foreign substances to move about in the air and possibly contaminate the entire building

An antibacterial filter suppresses the proliferation of microorganisms adhered on it's surface, but exerts no effect on the microorganisms adhered on the filtered foreign substances, so microorganisms proliferate on their surfaces.

The new product is a dustproof type polyester nonwoven fabric with a coating of photocatalytic titanium ...