Abstract: An apparatus and method to actively purify and sanitize air. A flow of air is directed over a surface that includes a photosensitizer formulation which is activated by light to emit singlet oxygen that inactivates and/or kills pathogens in the air flow. A fan device is employed to generate and direct the flow of air. The fan device includes the photosensitizer formulation disposed on fan blades, rotatable fan shafts, and interior surfaces of a housing. The flow of air is emitted towards an exterior surface. Activation of the photosensitizer by light emits singlet oxygen in the flow of air to inactivate pathogens disposed on the interior surface of the housing and the exterior surface.

Abstract: A photosensitizer formulation can be disposed on or in a mesh; net; netting; screen; curtain of strands, fibers, or monofilaments; substrate, personal protective gear, mask, or any other suitable object. The photosensitizer formulation, when in contact with molecular oxygen and activated by light or ultrasound, produces microbicidal singlet oxygen. A variety of different arrangements and applications are described. For example, an air flow device may also be included to generate a flow of air through or over the photosensitizer formulation. A fluorescent formulation may be included to monitor photobleaching. The photosensitizer formulation may be disposed in a concentration gradient to generate antigenic particles by damaging or destroying microbes.

Abstract: A method of manufacture and a fabric product that includes a concentrated formulation of photosensitizers having anti-microbial properties that are applied to outer surfaces of the fabric product. The inner surfaces of the fabric product are configured as a protective barrier for a user of the fabric product. Light activation of the photosensitizers protects the user against a range of pathogens, toxins, poisons, microbial particles and radiation particles incident on the outer surfaces of the fabric product.

Abstract: An applicator in the form of a container or cannister that is arranged to apply one or more photosensitizers to surfaces. The applicator includes at least one light source and the one or more photosensitizers. Light combined with the photosensitizers creates singlet oxygen and other radical species which are toxic to viruses and other pathogens. The photosensitizers may be combined in a powder form, or in an aqueous solution. Any light source can be used that emits the proper wavebands or wavelengths of light that are effectively absorbed by the photosensitizers leading to singlet oxygen generation.

Abstract: A photosensitizer formulation can be disposed on or in a container. The photosensitizer formulation, when in contact with molecular oxygen and activated by light or ultrasound, produces microbicidal singlet oxygen. A variety of different arrangements and applications are described. For example, an air flow device may also be included to generate a flow of air through or over the photosensitizer formulation.

Abstract: A photosensitizer formulation can be disposed on or in a mesh; net; netting; screen; curtain of strands, fibers, or monofilaments; substrate, personal protective gear, mask, or any other suitable object. The photosensitizer formulation, when in contact with molecular oxygen and activated by light or ultrasound, produces microbicidal singlet oxygen. A variety of different arrangements and applications are described. For example, an air flow device may also be included to generate a flow of air through or over the photosensitizer formulation. A fluorescent formulation may be included to monitor photobleaching. The photosensitizer formulation may be disposed in a concentration gradient to generate antigenic particles by damaging or destroying microbes.

Abstract: A photosensitizer formulation can be disposed on or in a mesh; net; netting; screen; curtain of strands, fibers, or monofilaments; substrate, personal protective gear, mask, or any other suitable object. The photosensitizer formulation, when in contact with molecular oxygen and activated by light or ultrasound, produces microbicidal singlet oxygen. A variety of different arrangements and applications are described. For example, an air flow device may also be included to generate a flow of air through or over the photosensitizer formulation. A fluorescent formulation may be included to monitor photobleaching. The photosensitizer formulation may be disposed in a concentration gradient to generate antigenic particles by damaging or destroying microbes.

Abstract: A photosensitizer formulation can be disposed on or in a mesh; net; netting; screen; curtain of strands, fibers, or monofilaments; substrate, personal protective gear, mask, or any other suitable object. The photosensitizer formulation, when in contact with molecular oxygen and activated by light or ultrasound, produces microbicidal singlet oxygen. A variety of different arrangements and applications are described. For example, an air flow device may also be included to generate a flow of air through or over the photosensitizer formulation. A fluorescent formulation may be included to monitor photobleaching. The photosensitizer formulation may be disposed in a concentration gradient to generate antigenic particles by damaging or destroying microbes.