초록

The method involves contacting the air with an aqueous or non-aqueous liquid in a stand-alone system. The air may be brought into contact with the liquid using a number of different types of apparatus, including a packed column scrubber. The liquid may be non-evaporative.

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What is claimed is: 1. A method for cleaning indoor air comprising contacting the air with an aqueous or non-aqueous liquid through a packed column scrubber comprising a photobleaching agent with nanoparticles dispersed therein in a stand-alone apparatus. 2. A method for cleaning indoor air compr

What is claimed is: 1. A method for cleaning indoor air comprising contacting the air with an aqueous or non-aqueous liquid through a packed column scrubber comprising a photobleaching agent with nanoparticles dispersed therein in a stand-alone apparatus. 2. A method for cleaning indoor air comprising contacting the air with an aqueous or non-aqueous liquid comprising a photobleaching agent with nanoparticles dispersed therein, which is non-evaporative, in a stand alone air cleaning apparatus. 3. A method according to claim 2 wherein the stand-alone air cleaning apparatus comprises an air-liquid scrubber. 4. A method for cleaning air comprising contacting the air with an aqueous non-evaporative liquid comprising a photobleaching agent with nanoparticles dispersed therein in a stand-alone system. 5. A method for cleaning indoor air comprising contacting the air with a liquid in a stand alone apparatus, wherein the liquid contains nano-particle photobleaching agents. 6. A method for cleaning indoor air comprising contacting the indoor air with a liquid that contains active solid particles and a photobleaching agent. 7. A method according to claim 6 which comprises a part of a heating, ventilation, or air conditioning system and further comprising the step of irradiating said photobleaching agent with a UV-light source. 8. A method according to claim 7 which is carried out using an emitted light wavelength of 200-300 nm.